Add chrome-search: access from Instant overlay

Enables the Instant NTP page access to:
  chrome-search://theme/*,
  chrome-search://favicon/*, and
  chrome-search://thumb/*.

This CL has a number of aspects to make the installed theme
background image available to the Instant overlay:
   1. Utilizes the new chrome-search: scheme that is accessible only
      to the Instant overlay's render process.  This is enforced
      on the renderer side by WebKit::WebSecurityPolicy
      facilities.  This is enforced on the browser side by the
      InstantIOContext::ShouldServiceRequest and URLDataSource::ShouldServiceRequest facilities.
   2. Whitelists the chrome-search://theme origin to be made
      available to the specific Instant overlay's origin/url.
   3. Backend CSS that sets the appropriate background image
      that resides in the chrome-search://theme origin.
   4. A small refactoring of the Instant tests to support mix-in
      usage of InstantTestBase.

BUG=172408, 134937
TEST=InstantPolicyTest.SearchSchemePolicy
R=sreeram@chromium.org, creis@chromium.org


Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=186347

Review URL: https://chromiumcodereview.appspot.com/11896113

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@186680 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 3 insertions, 20 deletions

diff --git a/chrome/browser/profiles/profile.h b/chrome/browser/profiles/profile.h
index 1256c36..a5ae599 100644
--- a/chrome/browser/profiles/profile.h
+++ b/chrome/browser/profiles/profile.h
@@ -14,6 +14,7 @@
 #include "base/logging.h"
 #include "chrome/browser/net/pref_proxy_config_tracker.h"
 #include "content/public/browser/browser_context.h"
+#include "content/public/browser/content_browser_client.h"
 #include "net/url_request/url_request_job_factory.h"
 
 class ChromeAppCacheService;
@@ -255,16 +256,7 @@ class Profile : public content::BrowserContext {
   // ContextBrowserClient to call this function.
   // TODO(ajwong): Remove once http://crbug.com/159193 is resolved.
   virtual net::URLRequestContextGetter* CreateRequestContext(
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          blob_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          file_system_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          developer_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          chrome_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          chrome_devtools_protocol_handler) = 0;
+      content::ProtocolHandlerMap* protocol_handlers) = 0;
 
   // Creates the net::URLRequestContextGetter for a StoragePartition. Should
   // only be called once per partition_path per ContentBrowserClient object.
@@ -275,16 +267,7 @@ class Profile : public content::BrowserContext {
   virtual net::URLRequestContextGetter* CreateRequestContextForStoragePartition(
       const base::FilePath& partition_path,
       bool in_memory,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          blob_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          file_system_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          developer_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          chrome_protocol_handler,
-      scoped_ptr<net::URLRequestJobFactory::ProtocolHandler>
-          chrome_devtools_protocol_handler) = 0;
+      content::ProtocolHandlerMap* protocol_handlers) = 0;
 
   // Returns the last directory that was chosen for uploading or opening a file.
   virtual base::FilePath last_selected_directory() = 0;