Move ClipboardURLProvider into //components/omnibox.

Move ClipboardURLProvider with the other AutocompleteProvider into
//components/omnibox to simplify the construction of the provider
and break circular dependency of open_from_clipboard and omnibox
components.

Introduce a new AutocompleteProvider::Type for this new provider
(AutocompleteProvider::TYPE_CLIPBOARD_URL) with the corresponding
value in OmniboxEventProto enumeration.

Pass the AutocompleteProviderClient to the ClipboardURLProvider
and remove another layer of indirection for the construction of
the AutocompleteMatch.

Add AutocompleteProvider::TYPE_CLIPBOARD_URL to the default list
of providers and construct, if ClipboardRecentContent singleton
exists (currently only implemented on iOS), a ClipboardURLProvider.

Add unit tests for ClipboardURLProvider.

BUG=517134,517017,514225

Review URL: https://codereview.chromium.org/1273013002

Cr-Commit-Position: refs/heads/master@{#342806}

31 files changed, 398 insertions, 139 deletions

diff --git a/components/BUILD.gn b/components/BUILD.gn
index 8806c7e..b7c12a2 100644
--- a/components/BUILD.gn
+++ b/components/BUILD.gn
@@ -68,6 +68,7 @@ group("all_components") {
     "//components/offline_pages",
     "//components/omnibox/browser",
     "//components/onc",
+    "//components/open_from_clipboard",
     "//components/os_crypt",
     "//components/packed_ct_ev_whitelist",
     "//components/pairing",
@@ -309,9 +310,9 @@ test("components_unittests") {
     "//components/dom_distiller/core:unit_tests",
     "//components/domain_reliability:unit_tests",
     "//components/favicon_base:unit_tests",
-    "//components/gcm_driver:unit_tests",
     "//components/gcm_driver/crypto:unit_tests",
     "//components/gcm_driver/instance_id:unit_tests",
+    "//components/gcm_driver:unit_tests",
     "//components/google/core/browser:unit_tests",
     "//components/invalidation/impl:unittests",
     "//components/login:unit_tests",
@@ -319,6 +320,7 @@ test("components_unittests") {
     "//components/mime_util:unit_tests",
     "//components/offline_pages:unit_tests",
     "//components/omnibox/browser:unit_tests",
+    "//components/open_from_clipboard:unit_tests",
     "//components/packed_ct_ev_whitelist:unit_tests",
     "//components/undo:unit_tests",
     "//components/url_formatter:unit_tests",
@@ -326,8 +328,8 @@ test("components_unittests") {
     "//components/upload_list:unit_tests",
     "//components/user_prefs/tracked:unit_tests",
     "//components/variations:unit_tests",
-    "//components/webcrypto:unit_tests",
     "//components/web_resource:unit_tests",
+    "//components/webcrypto:unit_tests",
     "//components/webdata/common:unit_tests",
 
     # These are the deps required by the code in this target.
diff --git a/components/OWNERS b/components/OWNERS
index 25ee959..f49192a 100644
--- a/components/OWNERS
+++ b/components/OWNERS
@@ -178,7 +178,6 @@ per-file onc.gypi=pneubeck@chromium.org
 per-file onc.gypi=stevenjb@chromium.org
 
 per-file open_from_clipboard.gypi=jif@chromium.org
-per-file open_from_clipboard_strings.grdp=jif@chromium.org
 
 per-file ownership.gypi=alemate@chromium.org
 per-file ownership.gypi=dpolukhin@chromium.org
diff --git a/components/components.gyp b/components/components.gyp
index e618f9c..246ebca 100644
--- a/components/components.gyp
+++ b/components/components.gyp
@@ -47,6 +47,7 @@
     'offline_pages.gypi',
     'omnibox.gypi',
     'onc.gypi',
+    'open_from_clipboard.gypi',
     'os_crypt.gypi',
     'ownership.gypi',
     'packed_ct_ev_whitelist.gypi',
@@ -110,7 +111,6 @@
     }],
     ['OS == "ios"', {
       'includes': [
-        'open_from_clipboard.gypi',
         'webp_transcode.gypi',
       ],
     }],
diff --git a/components/components_strings.grd b/components/components_strings.grd
index cba5f09..51a4cce 100644
--- a/components/components_strings.grd
+++ b/components/components_strings.grd
@@ -174,7 +174,6 @@
       <part file="dom_distiller_strings.grdp" />
       <part file="error_page_strings.grdp" />
       <part file="omnibox_strings.grdp" />
-      <part file="open_from_clipboard_strings.grdp" />
       <part file="password_manager_strings.grdp" />
       <part file="pdf_strings.grdp" />
       <part file="policy_strings.grdp" />
diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index e04bad9..d5f78fe 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -353,12 +353,16 @@
       'omnibox/browser/autocomplete_match_unittest.cc',
       'omnibox/browser/autocomplete_result_unittest.cc',
       'omnibox/browser/base_search_provider_unittest.cc',
+      'omnibox/browser/clipboard_url_provider_unittest.cc',
       'omnibox/browser/in_memory_url_index_types_unittest.cc',
       'omnibox/browser/keyword_provider_unittest.cc',
       'omnibox/browser/omnibox_field_trial_unittest.cc',
       'omnibox/browser/scored_history_match_unittest.cc',
       'omnibox/browser/suggestion_answer_unittest.cc',
     ],
+    'open_from_clipboard_unittest_sources': [
+      'open_from_clipboard/clipboard_recent_content_ios_unittest.mm',
+    ],
     'os_crypt_unittest_sources': [
       'os_crypt/ie7_password_win_unittest.cc',
       'os_crypt/keychain_password_mac_unittest.mm',
@@ -745,8 +749,8 @@
         '<@(enhanced_bookmarks_unittest_sources)',
         '<@(favicon_base_unittest_sources)',
         '<@(favicon_unittest_sources)',
-        '<@(gcm_driver_unittest_sources)',
         '<@(gcm_driver_crypto_unittest_sources)',
+        '<@(gcm_driver_unittest_sources)',
         '<@(google_unittest_sources)',
         '<@(history_unittest_sources)',
         '<@(instance_id_unittest_sources)',
@@ -760,6 +764,7 @@
         '<@(network_time_unittest_sources)',
         '<@(offline_page_unittest_sources)',
         '<@(omnibox_unittest_sources)',
+        '<@(open_from_clipboard_unittest_sources)',
         '<@(os_crypt_unittest_sources)',
         '<@(packed_ct_ev_whitelist_unittest_sources)',
         '<@(password_manager_unittest_sources)',
@@ -767,9 +772,9 @@
         '<@(proxy_config_unittest_sources)',
         '<@(query_parser_unittest_sources)',
         '<@(rappor_unittest_sources)',
-        '<@(search_unittest_sources)',
         '<@(search_engines_unittest_sources)',
         '<@(search_provider_logos_unittest_sources)',
+        '<@(search_unittest_sources)',
         '<@(sessions_unittest_sources)',
         '<@(signin_unittest_sources)',
         '<@(suggestions_unittest_sources)',
@@ -868,6 +873,8 @@
         'components.gyp:offline_pages',
         'components.gyp:omnibox_browser',
         'components.gyp:omnibox_test_support',
+        'components.gyp:open_from_clipboard',
+        'components.gyp:open_from_clipboard_test_support',
         'components.gyp:os_crypt',
         'components.gyp:packed_ct_ev_whitelist',
         'components.gyp:password_manager_core_browser',
@@ -1035,7 +1042,6 @@
           ],
         }, { # 'OS == "ios"'
           'sources': [
-            'open_from_clipboard/clipboard_recent_content_ios_unittest.mm',
             'webp_transcode/webp_decoder_unittest.mm',
             'webp_transcode/webp_network_client_unittest.mm',
           ],
@@ -1055,7 +1061,6 @@
             '../ios/web/ios_web.gyp:test_support_ios_web',
             '../third_party/ocmock/ocmock.gyp:ocmock',
             'components.gyp:autofill_ios_browser',
-            'components.gyp:open_from_clipboard',
             'components.gyp:sessions_ios',
             'components.gyp:signin_ios_browser',
             'components.gyp:signin_ios_browser_test_support',
diff --git a/components/metrics/proto/omnibox_event.proto b/components/metrics/proto/omnibox_event.proto
index bf13d4c..229b697 100644
--- a/components/metrics/proto/omnibox_event.proto
+++ b/components/metrics/proto/omnibox_event.proto
@@ -167,6 +167,7 @@ message OmniboxEventProto {
     // This enum value is currently only used by Android GSA. It represents
     // a suggestion powered by a Chrome content provider.
     ON_DEVICE_CHROME = 13;
+    CLIPBOARD_URL = 14;  // Suggestion coming from clipboard (iOS only).
   }
 
   // The result set displayed on the completion popup
diff --git a/components/omnibox.gypi b/components/omnibox.gypi
index 9133592..572e9e4 100644
--- a/components/omnibox.gypi
+++ b/components/omnibox.gypi
@@ -26,6 +26,7 @@
         'keyed_service_core',
         'omnibox_common',
         'omnibox_in_memory_url_index_cache_proto',
+        'open_from_clipboard',
         'pref_registry',
         'query_parser',
         'search',
@@ -69,6 +70,8 @@
         'omnibox/browser/bookmark_provider.h',
         'omnibox/browser/builtin_provider.cc',
         'omnibox/browser/builtin_provider.h',
+        'omnibox/browser/clipboard_url_provider.cc',
+        'omnibox/browser/clipboard_url_provider.h',
         'omnibox/browser/history_provider.cc',
         'omnibox/browser/history_provider.h',
         'omnibox/browser/history_quick_provider.cc',
@@ -90,10 +93,10 @@
         'omnibox/browser/omnibox_edit_controller.h',
         'omnibox/browser/omnibox_edit_model.cc',
         'omnibox/browser/omnibox_edit_model.h',
-        'omnibox/browser/omnibox_field_trial.cc',
-        'omnibox/browser/omnibox_field_trial.h',
         'omnibox/browser/omnibox_event_global_tracker.cc',
         'omnibox/browser/omnibox_event_global_tracker.h',
+        'omnibox/browser/omnibox_field_trial.cc',
+        'omnibox/browser/omnibox_field_trial.h',
         'omnibox/browser/omnibox_log.cc',
         'omnibox/browser/omnibox_log.h',
         'omnibox/browser/omnibox_navigation_observer.h',
@@ -127,6 +130,8 @@
         'omnibox/browser/url_index_private_data.h',
         'omnibox/browser/url_prefix.cc',
         'omnibox/browser/url_prefix.h',
+        'omnibox/browser/verbatim_match.cc',
+        'omnibox/browser/verbatim_match.h',
         'omnibox/browser/zero_suggest_provider.cc',
         'omnibox/browser/zero_suggest_provider.h',
       ],
diff --git a/components/omnibox/OWNERS b/components/omnibox/OWNERS
index 827c722..a659a21 100644
--- a/components/omnibox/OWNERS
+++ b/components/omnibox/OWNERS
@@ -1,2 +1,4 @@
 pkasting@chromium.org
 mpearson@chromium.org
+
+per-file clipboard_url_provider.*=jif@chromium.org
diff --git a/components/omnibox/browser/BUILD.gn b/components/omnibox/browser/BUILD.gn
index 709fbdf..5cc7167 100644
--- a/components/omnibox/browser/BUILD.gn
+++ b/components/omnibox/browser/BUILD.gn
@@ -30,6 +30,8 @@ source_set("browser") {
     "bookmark_provider.h",
     "builtin_provider.cc",
     "builtin_provider.h",
+    "clipboard_url_provider.cc",
+    "clipboard_url_provider.h",
     "history_provider.cc",
     "history_provider.h",
     "history_quick_provider.cc",
@@ -88,6 +90,8 @@ source_set("browser") {
     "url_index_private_data.h",
     "url_prefix.cc",
     "url_prefix.h",
+    "verbatim_match.cc",
+    "verbatim_match.h",
     "zero_suggest_provider.cc",
     "zero_suggest_provider.h",
   ]
@@ -97,13 +101,13 @@ source_set("browser") {
     "//components/metrics/proto",
   ]
   deps = [
-    ":in_memory_url_index_cache_proto",
     "//base",
     "//base:i18n",
     "//base:prefs",
     "//components/bookmarks/browser",
     "//components/keyed_service/core",
     "//components/omnibox/common",
+    "//components/open_from_clipboard",
     "//components/pref_registry",
     "//components/query_parser",
     "//components/resources",
@@ -122,6 +126,7 @@ source_set("browser") {
     "//ui/base",
     "//ui/gfx",
     "//url",
+    ":in_memory_url_index_cache_proto",
   ]
 }
 
@@ -158,6 +163,7 @@ source_set("unit_tests") {
     "autocomplete_match_unittest.cc",
     "autocomplete_result_unittest.cc",
     "base_search_provider_unittest.cc",
+    "clipboard_url_provider_unittest.cc",
     "in_memory_url_index_types_unittest.cc",
     "keyword_provider_unittest.cc",
     "omnibox_field_trial_unittest.cc",
@@ -166,14 +172,15 @@ source_set("unit_tests") {
   ]
 
   deps = [
-    ":browser",
-    ":test_support",
     "//base",
+    "//components/open_from_clipboard:test_support",
     "//components/search",
     "//components/search_engines",
     "//components/variations",
     "//testing/gmock",
     "//testing/gtest",
     "//url",
+    ":browser",
+    ":test_support",
   ]
 }
diff --git a/components/omnibox/browser/DEPS b/components/omnibox/browser/DEPS
index 7c81237..480cab6 100644
--- a/components/omnibox/browser/DEPS
+++ b/components/omnibox/browser/DEPS
@@ -3,6 +3,7 @@ include_rules = [
   "+components/history/core/browser",
   "+components/keyed_service/core",
   "+components/metrics/proto",
+  "+components/open_from_clipboard",
   "+components/pref_registry",
   "+components/query_parser",
   "+components/search",
diff --git a/components/omnibox/browser/autocomplete_classifier.cc b/components/omnibox/browser/autocomplete_classifier.cc
index f1a1366..26e349a6 100644
--- a/components/omnibox/browser/autocomplete_classifier.cc
+++ b/components/omnibox/browser/autocomplete_classifier.cc
@@ -24,6 +24,9 @@ const int AutocompleteClassifier::kDefaultOmniboxProviders =
     AutocompleteProvider::TYPE_BUILTIN |
     AutocompleteProvider::TYPE_SHORTCUTS |
     AutocompleteProvider::TYPE_ZERO_SUGGEST |
+#else
+    // "URL from clipboard" can only be used on iOS.
+    AutocompleteProvider::TYPE_CLIPBOARD_URL |
 #endif
     AutocompleteProvider::TYPE_BOOKMARK |
     AutocompleteProvider::TYPE_HISTORY_QUICK |
diff --git a/components/omnibox/browser/autocomplete_controller.cc b/components/omnibox/browser/autocomplete_controller.cc
index 37665cb..b25d7f5 100644
--- a/components/omnibox/browser/autocomplete_controller.cc
+++ b/components/omnibox/browser/autocomplete_controller.cc
@@ -13,9 +13,11 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
+#include "build/build_config.h"
 #include "components/omnibox/browser/autocomplete_controller_delegate.h"
 #include "components/omnibox/browser/bookmark_provider.h"
 #include "components/omnibox/browser/builtin_provider.h"
+#include "components/omnibox/browser/clipboard_url_provider.h"
 #include "components/omnibox/browser/history_quick_provider.h"
 #include "components/omnibox/browser/history_url_provider.h"
 #include "components/omnibox/browser/keyword_provider.h"
@@ -23,6 +25,7 @@
 #include "components/omnibox/browser/search_provider.h"
 #include "components/omnibox/browser/shortcuts_provider.h"
 #include "components/omnibox/browser/zero_suggest_provider.h"
+#include "components/open_from_clipboard/clipboard_recent_content.h"
 #include "components/search_engines/template_url.h"
 #include "components/search_engines/template_url_service.h"
 #include "grit/components_strings.h"
@@ -202,6 +205,14 @@ AutocompleteController::AutocompleteController(
     if (zero_suggest_provider_)
       providers_.push_back(zero_suggest_provider_);
   }
+  if (provider_types & AutocompleteProvider::TYPE_CLIPBOARD_URL) {
+    ClipboardRecentContent* clipboard_recent_content =
+        ClipboardRecentContent::GetInstance();
+    if (clipboard_recent_content) {
+      providers_.push_back(new ClipboardURLProvider(provider_client_.get(),
+                                                    clipboard_recent_content));
+    }
+  }
 }
 
 AutocompleteController::~AutocompleteController() {
diff --git a/components/omnibox/browser/autocomplete_provider.cc b/components/omnibox/browser/autocomplete_provider.cc
index 5072af2..a592ea3 100644
--- a/components/omnibox/browser/autocomplete_provider.cc
+++ b/components/omnibox/browser/autocomplete_provider.cc
@@ -39,6 +39,8 @@ const char* AutocompleteProvider::TypeToString(Type type) {
       return "Shortcuts";
     case TYPE_ZERO_SUGGEST:
       return "ZeroSuggest";
+    case TYPE_CLIPBOARD_URL:
+      return "ClipboardURL";
     default:
       NOTREACHED() << "Unhandled AutocompleteProvider::Type " << type;
       return "Unknown";
@@ -73,6 +75,8 @@ metrics::OmniboxEventProto_ProviderType AutocompleteProvider::
       return metrics::OmniboxEventProto::SHORTCUTS;
     case TYPE_ZERO_SUGGEST:
       return metrics::OmniboxEventProto::ZERO_SUGGEST;
+    case TYPE_CLIPBOARD_URL:
+      return metrics::OmniboxEventProto::CLIPBOARD_URL;
     default:
       NOTREACHED() << "Unhandled AutocompleteProvider::Type " << type_;
       return metrics::OmniboxEventProto::UNKNOWN_PROVIDER;
diff --git a/components/omnibox/browser/autocomplete_provider.h b/components/omnibox/browser/autocomplete_provider.h
index 2046a32..05aa666 100644
--- a/components/omnibox/browser/autocomplete_provider.h
+++ b/components/omnibox/browser/autocomplete_provider.h
@@ -133,6 +133,7 @@ class AutocompleteProvider
     TYPE_SEARCH           = 1 << 5,
     TYPE_SHORTCUTS        = 1 << 6,
     TYPE_ZERO_SUGGEST     = 1 << 7,
+    TYPE_CLIPBOARD_URL    = 1 << 8,
   };
 
   explicit AutocompleteProvider(Type type);
diff --git a/components/omnibox/browser/clipboard_url_provider.cc b/components/omnibox/browser/clipboard_url_provider.cc
new file mode 100644
index 0000000..8fd7612
--- /dev/null
+++ b/components/omnibox/browser/clipboard_url_provider.cc
@@ -0,0 +1,66 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/omnibox/browser/clipboard_url_provider.h"
+
+#include "base/logging.h"
+#include "base/strings/utf_string_conversions.h"
+#include "components/omnibox/browser/autocomplete_input.h"
+#include "components/omnibox/browser/autocomplete_provider_client.h"
+#include "components/omnibox/browser/verbatim_match.h"
+#include "components/open_from_clipboard/clipboard_recent_content.h"
+#include "components/url_formatter/url_formatter.h"
+#include "grit/components_strings.h"
+#include "ui/base/l10n/l10n_util.h"
+
+ClipboardURLProvider::ClipboardURLProvider(
+    AutocompleteProviderClient* client,
+    ClipboardRecentContent* clipboard_content)
+    : AutocompleteProvider(AutocompleteProvider::TYPE_CLIPBOARD_URL),
+      client_(client),
+      clipboard_content_(clipboard_content) {
+  DCHECK(clipboard_content_);
+}
+
+ClipboardURLProvider::~ClipboardURLProvider() {}
+
+void ClipboardURLProvider::Start(const AutocompleteInput& input,
+                                 bool minimal_changes) {
+  matches_.clear();
+  if (!input.from_omnibox_focus())
+    return;
+
+  GURL url;
+  if (!clipboard_content_->GetRecentURLFromClipboard(&url) ||
+      url == input.current_url())
+    return;
+
+  DCHECK(url.is_valid());
+  // Adds a default match. This match will be opened when the user presses "Go".
+  AutocompleteMatch verbatim_match = VerbatimMatchForURL(
+      client_, input.text(), input.current_page_classification(), 0);
+  if (verbatim_match.destination_url.is_valid())
+    matches_.push_back(verbatim_match);
+
+  // Add a clipboard match just below the verbatim match.
+  AutocompleteMatch match(this, verbatim_match.relevance - 1, false,
+                          AutocompleteMatchType::NAVSUGGEST);
+  match.destination_url = url;
+  match.contents.assign(url_formatter::FormatUrl(
+      url, client_->GetAcceptLanguages(), url_formatter::kFormatUrlOmitAll,
+      net::UnescapeRule::SPACES, nullptr, nullptr, nullptr));
+  AutocompleteMatch::ClassifyLocationInString(
+      base::string16::npos, 0, match.contents.length(),
+      ACMatchClassification::URL, &match.contents_class);
+
+  match.description.assign(l10n_util::GetStringUTF16(IDS_LINK_FROM_CLIPBOARD));
+  AutocompleteMatch::ClassifyLocationInString(
+      base::string16::npos, 0, match.description.length(),
+      ACMatchClassification::NONE, &match.description_class);
+
+  // At least one match must be default, so if verbatim_match was invalid,
+  // the clipboard match is allowed to be default.
+  match.allowed_to_be_default_match = matches_.empty();
+  matches_.push_back(match);
+}
diff --git a/components/open_from_clipboard/clipboard_url_provider.h b/components/omnibox/browser/clipboard_url_provider.h
index af69ae5..583711c 100644
--- a/components/open_from_clipboard/clipboard_url_provider.h
+++ b/components/omnibox/browser/clipboard_url_provider.h
@@ -2,23 +2,20 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_URL_PROVIDER_H_
-#define COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_URL_PROVIDER_H_
+#ifndef COMPONENTS_OMNIBOX_BROWSER_CLIPBOARD_URL_PROVIDER_H_
+#define COMPONENTS_OMNIBOX_BROWSER_CLIPBOARD_URL_PROVIDER_H_
 
-#include "base/callback.h"
+#include "base/macros.h"
 #include "components/omnibox/browser/autocomplete_provider.h"
 
+class AutocompleteProviderClient;
 class ClipboardRecentContent;
 
 // Autocomplete provider offering content based on the clipboard's content.
 class ClipboardURLProvider : public AutocompleteProvider {
  public:
-  typedef base::Callback<AutocompleteMatch(const AutocompleteInput&)>
-      PlaceholderRequestCallback;
-
-  ClipboardURLProvider(
-      ClipboardRecentContent* clipboard_recent_content,
-      const PlaceholderRequestCallback& placeholder_match_getter);
+  ClipboardURLProvider(AutocompleteProviderClient* client,
+                       ClipboardRecentContent* clipboard_content);
 
   // AutocompleteProvider implementation.
   void Start(const AutocompleteInput& input, bool minimal_changes) override;
@@ -26,10 +23,10 @@ class ClipboardURLProvider : public AutocompleteProvider {
  private:
   ~ClipboardURLProvider() override;
 
-  ClipboardRecentContent* clipboard_recent_content_;
-  PlaceholderRequestCallback placeholder_match_getter_;
+  AutocompleteProviderClient* client_;
+  ClipboardRecentContent* clipboard_content_;
 
   DISALLOW_COPY_AND_ASSIGN(ClipboardURLProvider);
 };
 
-#endif  // COMPONENTS_OPEN_FROM_CLIPBOARD_CLIPBOARD_URL_PROVIDER_H_
+#endif  // COMPONENTS_OMNIBOX_BROWSER_CLIPBOARD_URL_PROVIDER_H_
diff --git a/components/omnibox/browser/clipboard_url_provider_unittest.cc b/components/omnibox/browser/clipboard_url_provider_unittest.cc
new file mode 100644
index 0000000..eea9882
--- /dev/null
+++ b/components/omnibox/browser/clipboard_url_provider_unittest.cc
@@ -0,0 +1,80 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/omnibox/browser/clipboard_url_provider.h"
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "components/omnibox/browser/autocomplete_input.h"
+#include "components/omnibox/browser/mock_autocomplete_provider_client.h"
+#include "components/omnibox/browser/test_scheme_classifier.h"
+#include "components/open_from_clipboard/fake_clipboard_recent_content.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace {
+
+const char kCurrentURL[] = "http://example.com/current";
+const char kClipboardURL[] = "http://example.com/clipboard";
+
+class ClipboardURLProviderTest : public testing::Test {
+ public:
+  ClipboardURLProviderTest()
+      : client_(new testing::NiceMock<MockAutocompleteProviderClient>()),
+        provider_(
+            new ClipboardURLProvider(client_.get(), &clipboard_content_)) {
+    SetClipboardUrl(GURL(kClipboardURL));
+  }
+
+  ~ClipboardURLProviderTest() override {}
+
+  void ClearClipboard() { clipboard_content_.SuppressClipboardContent(); }
+
+  void SetClipboardUrl(const GURL& url) {
+    clipboard_content_.SetClipboardContent(url,
+                                           base::TimeDelta::FromMinutes(10));
+  }
+
+  AutocompleteInput CreateAutocompleteInput(bool from_omnibox_focus) {
+    return AutocompleteInput(
+        base::string16(), base::string16::npos, std::string(),
+        GURL(kCurrentURL), metrics::OmniboxEventProto::INVALID_SPEC, false,
+        false, false, false, from_omnibox_focus, classifier_);
+  }
+
+ protected:
+  TestSchemeClassifier classifier_;
+  FakeClipboardRecentContent clipboard_content_;
+  scoped_ptr<testing::NiceMock<MockAutocompleteProviderClient>> client_;
+  scoped_refptr<ClipboardURLProvider> provider_;
+};
+
+TEST_F(ClipboardURLProviderTest, NotFromOmniboxFocus) {
+  provider_->Start(CreateAutocompleteInput(false), false);
+  EXPECT_TRUE(provider_->matches().empty());
+}
+
+TEST_F(ClipboardURLProviderTest, EmptyClipboard) {
+  ClearClipboard();
+  provider_->Start(CreateAutocompleteInput(true), false);
+  EXPECT_TRUE(provider_->matches().empty());
+}
+
+TEST_F(ClipboardURLProviderTest, ClipboardIsCurrentURL) {
+  SetClipboardUrl(GURL(kCurrentURL));
+  provider_->Start(CreateAutocompleteInput(true), false);
+  EXPECT_TRUE(provider_->matches().empty());
+}
+
+TEST_F(ClipboardURLProviderTest, HasMultipleMatches) {
+  provider_->Start(CreateAutocompleteInput(true), false);
+  ASSERT_GE(provider_->matches().size(), 1U);
+  EXPECT_EQ(GURL(kClipboardURL), provider_->matches().back().destination_url);
+}
+
+}  // namespace
diff --git a/components/omnibox/browser/verbatim_match.cc b/components/omnibox/browser/verbatim_match.cc
new file mode 100644
index 0000000..c478d23
--- /dev/null
+++ b/components/omnibox/browser/verbatim_match.cc
@@ -0,0 +1,24 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/omnibox/browser/verbatim_match.h"
+
+#include "components/omnibox/browser/autocomplete_classifier.h"
+#include "components/omnibox/browser/autocomplete_provider_client.h"
+
+AutocompleteMatch VerbatimMatchForURL(
+    AutocompleteProviderClient* client,
+    const base::string16& input_text,
+    metrics::OmniboxEventProto::PageClassification classification,
+    int verbatim_relevance) {
+  AutocompleteMatch match;
+  client->Classify(input_text, false, true, classification, &match, nullptr);
+  match.allowed_to_be_default_match = true;
+  // The default relevance to use for relevance match. Should be greater than
+  // all relevance matches returned by the ZeroSuggest server.
+  const int kDefaultVerbatimRelevance = 1300;
+  match.relevance =
+      verbatim_relevance >= 0 ? verbatim_relevance : kDefaultVerbatimRelevance;
+  return match;
+}
diff --git a/components/omnibox/browser/verbatim_match.h b/components/omnibox/browser/verbatim_match.h
new file mode 100644
index 0000000..bf630d7
--- /dev/null
+++ b/components/omnibox/browser/verbatim_match.h
@@ -0,0 +1,23 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_OMNIBOX_BROWSER_VERBATIM_MATCH_H_
+#define COMPONENTS_OMNIBOX_BROWSER_VERBATIM_MATCH_H_
+
+#include "base/strings/string16.h"
+#include "components/metrics/proto/omnibox_event.pb.h"
+
+struct AutocompleteMatch;
+class AutocompleteProviderClient;
+
+// Returns a verbatim match for |input_text| with |classification| and a
+// relevance of |verbatim_relevance|. If |verbatim_relevance| is negative
+// or null, then a default value is used.
+AutocompleteMatch VerbatimMatchForURL(
+    AutocompleteProviderClient* client,
+    const base::string16& input_text,
+    metrics::OmniboxEventProto::PageClassification classification,
+    int verbatim_relevance);
+
+#endif  // COMPONENTS_OMNIBOX_BROWSER_VERBATIM_MATCH_H_
diff --git a/components/omnibox/browser/zero_suggest_provider.cc b/components/omnibox/browser/zero_suggest_provider.cc
index 17a1bc9..b93b0ab 100644
--- a/components/omnibox/browser/zero_suggest_provider.cc
+++ b/components/omnibox/browser/zero_suggest_provider.cc
@@ -25,6 +25,7 @@
 #include "components/omnibox/browser/omnibox_field_trial.h"
 #include "components/omnibox/browser/omnibox_pref_names.h"
 #include "components/omnibox/browser/search_provider.h"
+#include "components/omnibox/browser/verbatim_match.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/search_engines/template_url_service.h"
 #include "components/url_formatter/url_formatter.h"
@@ -60,9 +61,6 @@ void LogOmniboxZeroSuggestRequest(
                             ZERO_SUGGEST_MAX_REQUEST_HISTOGRAM_VALUE);
 }
 
-// The maximum relevance of the top match from this provider.
-const int kDefaultVerbatimZeroSuggestRelevance = 1300;
-
 // Relevance value to use if it was not set explicitly by the server.
 const int kDefaultZeroSuggestRelevance = 100;
 
@@ -410,22 +408,12 @@ void ZeroSuggestProvider::ConvertResultsToAutocompleteMatches() {
 }
 
 AutocompleteMatch ZeroSuggestProvider::MatchForCurrentURL() {
-  AutocompleteMatch match;
-  client()->GetAutocompleteClassifier()->Classify(
-      permanent_text_, false, true, current_page_classification_, &match, NULL);
-  match.allowed_to_be_default_match = true;
-
   // The placeholder suggestion for the current URL has high relevance so
   // that it is in the first suggestion slot and inline autocompleted. It
   // gets dropped as soon as the user types something.
-  match.relevance = GetVerbatimRelevance();
-
-  return match;
-}
-
-int ZeroSuggestProvider::GetVerbatimRelevance() const {
-  return results_.verbatim_relevance >= 0 ?
-      results_.verbatim_relevance : kDefaultVerbatimZeroSuggestRelevance;
+  return VerbatimMatchForURL(client(), permanent_text_,
+                             current_page_classification_,
+                             results_.verbatim_relevance);
 }
 
 bool ZeroSuggestProvider::ShouldShowNonContextualZeroSuggest(
diff --git a/components/omnibox/browser/zero_suggest_provider.h b/components/omnibox/browser/zero_suggest_provider.h
index 107b11f..904aa6d 100644
--- a/components/omnibox/browser/zero_suggest_provider.h
+++ b/components/omnibox/browser/zero_suggest_provider.h
@@ -113,9 +113,6 @@ class ZeroSuggestProvider : public BaseSearchProvider,
   // function to return those |urls|.
   void OnMostVisitedUrlsAvailable(const history::MostVisitedURLList& urls);
 
-  // Returns the relevance score for the verbatim result.
-  int GetVerbatimRelevance() const;
-
   // Whether we can show zero suggest without sending |current_page_url| to
   // |suggest_url| search provider. Also checks that other conditions for
   // non-contextual zero suggest are satisfied.
diff --git a/components/omnibox_strings.grdp b/components/omnibox_strings.grdp
index aaa40eb..93b3eb9 100644
--- a/components/omnibox_strings.grdp
+++ b/components/omnibox_strings.grdp
@@ -13,5 +13,7 @@
   <message name="IDS_EMPTY_KEYWORD_VALUE" desc="Shown in the location bar drop down when the user enters a string that matches a chrome keyword, but they haven't entered any text following the chrome keyword">
     &lt;enter query&gt;
   </message>
-
+  <message name="IDS_LINK_FROM_CLIPBOARD" desc="The label in the omnibox dropdown explaining that the link has been extracted from the user's clipboard. [Length: 21em]">
+    Link you copied
+  </message>
 </grit-part>
diff --git a/components/open_from_clipboard.gypi b/components/open_from_clipboard.gypi
index 9103712..d990147 100644
--- a/components/open_from_clipboard.gypi
+++ b/components/open_from_clipboard.gypi
@@ -5,24 +5,38 @@
 {
   'targets': [
     {
+      # GN version: //components/open_from_clipboard
       'target_name': 'open_from_clipboard',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../url/url.gyp:url_lib',
-        'components_strings.gyp:components_strings',
-        'omnibox_browser',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'open_from_clipboard/clipboard_recent_content.cc',
         'open_from_clipboard/clipboard_recent_content.h',
         'open_from_clipboard/clipboard_recent_content_ios.h',
         'open_from_clipboard/clipboard_recent_content_ios.mm',
-        'open_from_clipboard/clipboard_url_provider.cc',
-        'open_from_clipboard/clipboard_url_provider.h',
+      ],
+    },
+    {
+      # GN version: //components/open_from_clipboard:test_support
+      'target_name': 'open_from_clipboard_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        'open_from_clipboard',
+      ],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        # Note: sources list duplicated in GN build.
+        'open_from_clipboard/fake_clipboard_recent_content.cc',
+        'open_from_clipboard/fake_clipboard_recent_content.h',
       ],
     },
   ],
diff --git a/components/open_from_clipboard/BUILD.gn b/components/open_from_clipboard/BUILD.gn
new file mode 100644
index 0000000..53db21a
--- /dev/null
+++ b/components/open_from_clipboard/BUILD.gn
@@ -0,0 +1,42 @@
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("open_from_clipboard") {
+  sources = [
+    "clipboard_recent_content.cc",
+    "clipboard_recent_content.h",
+    "clipboard_recent_content_ios.h",
+    "clipboard_recent_content_ios.mm",
+  ]
+
+  deps = [
+    "//base",
+    "//url",
+  ]
+}
+
+source_set("test_support") {
+  testonly = true
+  sources = [
+    "fake_clipboard_recent_content.cc",
+    "fake_clipboard_recent_content.h",
+  ]
+
+  deps = [
+    ":open_from_clipboard",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "clipboard_recent_content_ios_unittest.mm",
+  ]
+
+  deps = [
+    ":open_from_clipboard",
+    "//base",
+    "//testing/gtest",
+  ]
+}
diff --git a/components/open_from_clipboard/DEPS b/components/open_from_clipboard/DEPS
deleted file mode 100644
index 30a8913..0000000
--- a/components/open_from_clipboard/DEPS
+++ /dev/null
@@ -1,5 +0,0 @@
-include_rules = [
-  "+components/omnibox",
-  "+grit/components_strings.h",
-  "+ui/base/l10n",
-]
diff --git a/components/open_from_clipboard/clipboard_recent_content.cc b/components/open_from_clipboard/clipboard_recent_content.cc
index 5af65cd..56312ec 100644
--- a/components/open_from_clipboard/clipboard_recent_content.cc
+++ b/components/open_from_clipboard/clipboard_recent_content.cc
@@ -4,8 +4,6 @@
 
 #include "components/open_from_clipboard/clipboard_recent_content.h"
 
-#include "base/logging.h"
-
 namespace {
 ClipboardRecentContent* g_clipboard_recent_content = nullptr;
 }
@@ -16,7 +14,6 @@ ClipboardRecentContent::~ClipboardRecentContent() {}
 
 // static
 ClipboardRecentContent* ClipboardRecentContent::GetInstance() {
-  DCHECK(g_clipboard_recent_content);
   return g_clipboard_recent_content;
 }
 
diff --git a/components/open_from_clipboard/clipboard_recent_content.h b/components/open_from_clipboard/clipboard_recent_content.h
index e5bef75..c8f2499 100644
--- a/components/open_from_clipboard/clipboard_recent_content.h
+++ b/components/open_from_clipboard/clipboard_recent_content.h
@@ -21,8 +21,8 @@ class ClipboardRecentContent {
   virtual ~ClipboardRecentContent();
 
   // Returns the global instance of the ClipboardRecentContent singleton. This
-  // method does *not* create the singleton, and an instance must have been set
-  // via a call to SetInstance() before.
+  // method does *not* create the singleton and will return null if no instance
+  // was registered via SetInstance().
   static ClipboardRecentContent* GetInstance();
 
   // Sets the global instance of ClipboardRecentContent singleton.
diff --git a/components/open_from_clipboard/clipboard_url_provider.cc b/components/open_from_clipboard/clipboard_url_provider.cc
deleted file mode 100644
index 3009350..0000000
--- a/components/open_from_clipboard/clipboard_url_provider.cc
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "components/open_from_clipboard/clipboard_url_provider.h"
-
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "components/omnibox/browser/autocomplete_input.h"
-#include "components/open_from_clipboard/clipboard_recent_content.h"
-#include "grit/components_strings.h"
-#include "ui/base/l10n/l10n_util.h"
-
-namespace {
-// Score defining the priority of the suggestion. 1600 guarantees that the
-// suggestion will always be first. See table in autocomplete_provider.h.
-const int kClipboardURLProviderRelevance = 1600;
-}  // namespace
-
-ClipboardURLProvider::ClipboardURLProvider(
-    ClipboardRecentContent* clipboard_recent_content,
-    const PlaceholderRequestCallback& placeholder_match_getter)
-    : AutocompleteProvider(AutocompleteProvider::TYPE_SHORTCUTS),
-      clipboard_recent_content_(clipboard_recent_content),
-      placeholder_match_getter_(placeholder_match_getter) {
-  DCHECK(clipboard_recent_content_);
-}
-
-ClipboardURLProvider::~ClipboardURLProvider() {
-}
-
-void ClipboardURLProvider::Start(const AutocompleteInput& input,
-                                 bool minimal_changes) {
-  matches_.clear();
-  if (!input.from_omnibox_focus())
-    return;
-  // Attempt to add an AutocompleteMatch only if the user has not entered
-  // anything in the omnibox.
-  if (input.cursor_position() == base::string16::npos) {
-    GURL url;
-    // Add the suggestion only if the user is not already on the page stored
-    // in the clipboard.
-    if (clipboard_recent_content_->GetRecentURLFromClipboard(&url) &&
-        url != input.current_url()) {
-      DCHECK(url.is_valid());
-      AutocompleteMatch match(this, kClipboardURLProviderRelevance, false,
-                              AutocompleteMatchType::NAVSUGGEST_PERSONALIZED);
-      match.allowed_to_be_default_match = true;
-      match.destination_url = url;
-      match.contents.assign(base::UTF8ToUTF16(url.spec()));
-      AutocompleteMatch::ClassifyLocationInString(
-          base::string16::npos, 0, match.contents.length(),
-          ACMatchClassification::URL, &match.contents_class);
-
-      match.description.assign(
-          l10n_util::GetStringUTF16(IDS_LINK_FROM_CLIPBOARD));
-      AutocompleteMatch::ClassifyLocationInString(
-          base::string16::npos, 0, match.description.length(),
-          ACMatchClassification::URL, &match.description_class);
-      // Adds a default match. This match will be opened when the user presses
-      // "Go".
-      AutocompleteMatch current_url_match(placeholder_match_getter_.Run(input));
-      if (current_url_match.destination_url.is_valid()) {
-        // Makes the placeholder match be above the clipboard match.
-        current_url_match.relevance = kClipboardURLProviderRelevance + 1;
-        matches_.push_back(current_url_match);
-      }
-
-      matches_.push_back(match);
-    }
-  }
-  done_ = true;
-}
diff --git a/components/open_from_clipboard/fake_clipboard_recent_content.cc b/components/open_from_clipboard/fake_clipboard_recent_content.cc
new file mode 100644
index 0000000..a8e6825
--- /dev/null
+++ b/components/open_from_clipboard/fake_clipboard_recent_content.cc
@@ -0,0 +1,37 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "components/open_from_clipboard/fake_clipboard_recent_content.h"
+
+FakeClipboardRecentContent::FakeClipboardRecentContent()
+    : content_age_(base::TimeDelta::Max()), suppress_content_(false) {}
+
+FakeClipboardRecentContent::~FakeClipboardRecentContent() {}
+
+bool FakeClipboardRecentContent::GetRecentURLFromClipboard(GURL* url) const {
+  if (suppress_content_)
+    return false;
+
+  if (!clipboard_content_.is_valid())
+    return false;
+
+  *url = clipboard_content_;
+  return true;
+}
+
+base::TimeDelta FakeClipboardRecentContent::GetClipboardContentAge() const {
+  return content_age_;
+}
+
+void FakeClipboardRecentContent::SuppressClipboardContent() {
+  suppress_content_ = true;
+}
+
+void FakeClipboardRecentContent::SetClipboardContent(
+    const GURL& url,
+    base::TimeDelta content_age) {
+  clipboard_content_ = url;
+  content_age_ = content_age;
+  suppress_content_ = false;
+}
diff --git a/components/open_from_clipboard/fake_clipboard_recent_content.h b/components/open_from_clipboard/fake_clipboard_recent_content.h
new file mode 100644
index 0000000..e567bc6
--- /dev/null
+++ b/components/open_from_clipboard/fake_clipboard_recent_content.h
@@ -0,0 +1,36 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef COMPONENTS_OPEN_FROM_CLIPBOARD_FAKE_CLIPBOARD_RECENT_CONTENT_H_
+#define COMPONENTS_OPEN_FROM_CLIPBOARD_FAKE_CLIPBOARD_RECENT_CONTENT_H_
+
+#include "base/macros.h"
+#include "base/time/time.h"
+#include "components/open_from_clipboard/clipboard_recent_content.h"
+#include "url/gurl.h"
+
+// FakeClipboardRecentContent implements ClipboardRecentContent interface by
+// returning configurable values for use by tests.
+class FakeClipboardRecentContent : public ClipboardRecentContent {
+ public:
+  FakeClipboardRecentContent();
+  ~FakeClipboardRecentContent() override;
+
+  // ClipboardRecentContent implementation.
+  bool GetRecentURLFromClipboard(GURL* url) const override;
+  base::TimeDelta GetClipboardContentAge() const override;
+  void SuppressClipboardContent() override;
+
+  // Sets the URL and clipboard content age.
+  void SetClipboardContent(const GURL& url, base::TimeDelta content_age);
+
+ private:
+  GURL clipboard_content_;
+  base::TimeDelta content_age_;
+  bool suppress_content_;
+
+  DISALLOW_COPY_AND_ASSIGN(FakeClipboardRecentContent);
+};
+
+#endif  // COMPONENTS_OPEN_FROM_CLIPBOARD_FAKE_CLIPBOARD_RECENT_CONTENT_H_
diff --git a/components/open_from_clipboard_strings.grdp b/components/open_from_clipboard_strings.grdp
deleted file mode 100644
index c6ec2b5..0000000
--- a/components/open_from_clipboard_strings.grdp
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<grit-part>
-  <message name="IDS_LINK_FROM_CLIPBOARD" desc="The label in the omnibox dropdown explaining that the link has been extracted from the user's clipboard. [Length: 21em]">
-    Link you copied
-  </message>
-</grit-part>