Move content settings extension API to content_settings dir.

chrome/browser/content_settings/content_settings_extension_provider.h

 // Copyright (c) 2011 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 CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_EXTENSION_PROVIDER_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_EXTENSION_PROVIDER_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/content_settings/content_settings_observable_provider.h"
-#include "chrome/browser/extensions/extension_content_settings_store.h"
+#include "chrome/browser/extensions/api/content_settings/content_settings_store.h"
 
 namespace content_settings {
 
 // A content settings provider which manages settings defined by extensions.
 class ExtensionProvider : public ObservableProvider,
-                          public ExtensionContentSettingsStore::Observer {
+                          public extensions::ContentSettingsStore::Observer {
  public:
-  ExtensionProvider(ExtensionContentSettingsStore* extensions_settings,
+  ExtensionProvider(extensions::ContentSettingsStore* extensions_settings,
                     bool incognito);
 
   virtual ~ExtensionProvider();
 
   // ProviderInterface methods:
   virtual RuleIterator* GetRuleIterator(
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier,
       bool incognito) const OVERRIDE;
 
   virtual bool SetWebsiteSetting(
       const ContentSettingsPattern& primary_pattern,
       const ContentSettingsPattern& secondary_pattern,
       ContentSettingsType content_type,
       const ResourceIdentifier& resource_identifier,
       Value* value) OVERRIDE;
 
   virtual void ClearAllContentSettingsRules(ContentSettingsType content_type)
       OVERRIDE {}
 
   virtual void ShutdownOnUIThread() OVERRIDE;
 
-  // ExtensionContentSettingsStore::Observer methods:
+  // extensions::ContentSettingsStore::Observer methods:
   virtual void OnContentSettingChanged(const std::string& extension_id,
                                        bool incognito) OVERRIDE;
 
  private:
   // Specifies whether this provider manages settings for incognito or regular
   // sessions.
   bool incognito_;
 
   // The backend storing content setting rules defined by extensions.
-  scoped_refptr<ExtensionContentSettingsStore> extensions_settings_;
+  scoped_refptr<extensions::ContentSettingsStore> extensions_settings_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionProvider);
 };
 
 }  // namespace content_settings
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_EXTENSION_PROVIDER_H_