Move PreferencesMac to components/policy/.

This facilitates the refactoring of chrome/browser/policy into a layered
component.

BUG=271392

Review URL: https://codereview.chromium.org/78603003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237409 0039d316-1c4b-4281-b951-d872f2087c98

6 files changed, 152 insertions, 0 deletions

diff --git a/components/components_tests.gyp b/components/components_tests.gyp
index e21d2af..b70f043 100644
--- a/components/components_tests.gyp
+++ b/components/components_tests.gyp
@@ -90,6 +90,7 @@
 
             # Dependencies of policy
             'components.gyp:policy_component',
+            'components.gyp:policy_test_support',
 
             # Dependencies of precache
             'components.gyp:precache_core',
diff --git a/components/policy.gypi b/components/policy.gypi
index 4580dea..ca168d7 100644
--- a/components/policy.gypi
+++ b/components/policy.gypi
@@ -36,6 +36,8 @@
             'policy/core/common/policy_switches.cc',
             'policy/core/common/policy_switches.h',
             'policy/core/common/policy_types.h',
+            'policy/core/common/preferences_mac.cc',
+            'policy/core/common/preferences_mac.h',
             'policy/core/common/registry_dict_win.cc',
             'policy/core/common/registry_dict_win.h',
             'policy/core/common/schema.cc',
@@ -63,5 +65,19 @@
         }],
       ],
     },
+    {
+      'target_name': 'policy_test_support',
+      'type': 'static_library',
+      'defines!': ['POLICY_COMPONENT_IMPLEMENTATION'],
+      'dependencies': [],
+      'include_dirs': [
+        '..',
+      ],
+      'sources': [
+        'policy/core/common/preferences_mock_mac.cc',
+        'policy/core/common/preferences_mock_mac.h',
+      ],
+      'conditions': [],
+    },
   ],
 }
diff --git a/components/policy/core/common/preferences_mac.cc b/components/policy/core/common/preferences_mac.cc
new file mode 100644
index 0000000..e65b162
--- /dev/null
+++ b/components/policy/core/common/preferences_mac.cc
@@ -0,0 +1,19 @@
+// Copyright 2013 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/policy/core/common/preferences_mac.h"
+
+Boolean MacPreferences::AppSynchronize(CFStringRef applicationID) {
+  return CFPreferencesAppSynchronize(applicationID);
+}
+
+CFPropertyListRef MacPreferences::CopyAppValue(CFStringRef key,
+                                               CFStringRef applicationID) {
+  return CFPreferencesCopyAppValue(key, applicationID);
+}
+
+Boolean MacPreferences::AppValueIsForced(CFStringRef key,
+                                         CFStringRef applicationID) {
+  return CFPreferencesAppValueIsForced(key, applicationID);
+}
diff --git a/components/policy/core/common/preferences_mac.h b/components/policy/core/common/preferences_mac.h
new file mode 100644
index 0000000..5bb14c0
--- /dev/null
+++ b/components/policy/core/common/preferences_mac.h
@@ -0,0 +1,35 @@
+// Copyright 2013 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_POLICY_CORE_COMMON_PREFERENCES_MAC_H_
+#define COMPONENTS_POLICY_CORE_COMMON_PREFERENCES_MAC_H_
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include "base/basictypes.h"
+#include "components/policy/policy_export.h"
+
+// Wraps a small part of the CFPreferences API surface in a very thin layer, to
+// allow it to be mocked out for testing.
+
+// See CFPreferences documentation for function documentation, as these call
+// through directly to their CFPreferences equivalents (Foo ->
+// CFPreferencesFoo).
+class POLICY_EXPORT MacPreferences {
+ public:
+  MacPreferences() {}
+  virtual ~MacPreferences() {}
+
+  virtual Boolean AppSynchronize(CFStringRef applicationID);
+
+  virtual CFPropertyListRef CopyAppValue(CFStringRef key,
+                                         CFStringRef applicationID);
+
+  virtual Boolean AppValueIsForced(CFStringRef key, CFStringRef applicationID);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MacPreferences);
+};
+
+#endif  // COMPONENTS_POLICY_CORE_COMMON_PREFERENCES_MAC_H_
diff --git a/components/policy/core/common/preferences_mock_mac.cc b/components/policy/core/common/preferences_mock_mac.cc
new file mode 100644
index 0000000..bc51c9a
--- /dev/null
+++ b/components/policy/core/common/preferences_mock_mac.cc
@@ -0,0 +1,47 @@
+// Copyright 2013 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/policy/core/common/preferences_mock_mac.h"
+
+MockPreferences::MockPreferences() {
+  values_.reset(CFDictionaryCreateMutable(kCFAllocatorDefault,
+                                          0,
+                                          &kCFTypeDictionaryKeyCallBacks,
+                                          &kCFTypeDictionaryValueCallBacks));
+  forced_.reset(CFSetCreateMutable(kCFAllocatorDefault,
+                                   0,
+                                   &kCFTypeSetCallBacks));
+}
+
+MockPreferences::~MockPreferences() {
+}
+
+Boolean MockPreferences::AppSynchronize(CFStringRef applicationID) {
+  return true;
+}
+
+CFPropertyListRef MockPreferences::CopyAppValue(CFStringRef key,
+                                                CFStringRef applicationID) {
+  CFPropertyListRef value;
+  Boolean found = CFDictionaryGetValueIfPresent(values_,
+                                                key,
+                                                &value);
+  if (!found || !value)
+    return NULL;
+  CFRetain(value);
+  return value;
+}
+
+Boolean MockPreferences::AppValueIsForced(CFStringRef key,
+                                          CFStringRef applicationID) {
+  return CFSetContainsValue(forced_, key);
+}
+
+void MockPreferences::AddTestItem(CFStringRef key,
+                                  CFPropertyListRef value,
+                                  bool is_forced) {
+  CFDictionarySetValue(values_, key, value);
+  if (is_forced)
+    CFSetAddValue(forced_, key);
+}
diff --git a/components/policy/core/common/preferences_mock_mac.h b/components/policy/core/common/preferences_mock_mac.h
new file mode 100644
index 0000000..f28f8fe
--- /dev/null
+++ b/components/policy/core/common/preferences_mock_mac.h
@@ -0,0 +1,34 @@
+// Copyright 2013 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_POLICY_CORE_COMMON_PREFERENCES_MOCK_MAC_H_
+#define COMPONENTS_POLICY_CORE_COMMON_PREFERENCES_MOCK_MAC_H_
+
+#include "base/mac/scoped_cftyperef.h"
+#include "components/policy/core/common/preferences_mac.h"
+#include "components/policy/policy_export.h"
+
+// Mock preferences wrapper for testing code that interacts with CFPreferences.
+class POLICY_EXPORT MockPreferences : public MacPreferences {
+ public:
+  MockPreferences();
+  virtual ~MockPreferences();
+
+  virtual Boolean AppSynchronize(CFStringRef applicationID) OVERRIDE;
+
+  virtual CFPropertyListRef CopyAppValue(CFStringRef key,
+                                         CFStringRef applicationID) OVERRIDE;
+
+  virtual Boolean AppValueIsForced(CFStringRef key,
+                                   CFStringRef applicationID) OVERRIDE;
+
+  // Adds a preference item with the given info to the test set.
+  void AddTestItem(CFStringRef key, CFPropertyListRef value, bool is_forced);
+
+ private:
+  base::ScopedCFTypeRef<CFMutableDictionaryRef> values_;
+  base::ScopedCFTypeRef<CFMutableSetRef> forced_;
+};
+
+#endif  // COMPONENTS_POLICY_CORE_COMMON_PREFERENCES_MOCK_MAC_H_