content: convert zoom notifications to observer usage

chrome/browser/profiles/profile_impl.h

 // Copyright (c) 2012 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.
 
 // This class gathers state related to a single user profile.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_IMPL_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IMPL_H_
 
 #include <string>
 
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/public/pref_change_registrar.h"
 #include "base/timer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_impl_io_data.h"
+#include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class NetPrefObserver;
 class PrefServiceSyncable;
 class PrefServiceBase;
 class SSLConfigServiceManager;
 
 #if defined(OS_CHROMEOS)
 namespace chromeos {
@@ skipping 14 matching lines @@
 namespace extensions {
 class ExtensionSystem;
 }
 
 namespace policy {
 class UserCloudPolicyManager;
 }
 
 // The default profile implementation.
 class ProfileImpl : public Profile,
+                    public content::HostZoomMap::Observer,
                     public content::NotificationObserver {
  public:
   // Value written to prefs when the exit type is EXIT_NORMAL. Public for tests.
   static const char* const kPrefExitTypeNormal;
 
   virtual ~ProfileImpl();
 
   static void RegisterUserPrefs(PrefServiceSyncable* prefs);
 
   // content::BrowserContext implementation:
@@ skipping 59 matching lines @@
 #if defined(OS_CHROMEOS)
   virtual void ChangeAppLocale(const std::string& locale,
                                AppLocaleChangedVia) OVERRIDE;
   virtual void OnLogin() OVERRIDE;
   virtual void SetupChromeOSEnterpriseExtensionObserver() OVERRIDE;
   virtual void InitChromeOSPreferences() OVERRIDE;
 #endif  // defined(OS_CHROMEOS)
 
   virtual PrefProxyConfigTracker* GetProxyConfigTracker() OVERRIDE;
 
+  // content::HostZoomMap::Observer implementation:
+  virtual void OnZoomLevelChanged(const std::string& host) OVERRIDE;
+
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  private:
   friend class Profile;
   friend class BetterSessionRestoreCrashTest;
   FRIEND_TEST_ALL_PREFIXES(StartupBrowserCreatorTest,
                            ProfilesLaunchedAfterCrash);
@@ skipping 127 matching lines @@
   //   chrome/browser/profile/profile_keyed_dependency_manager.{h,cc}
 
   Profile::Delegate* delegate_;
 
   chrome_browser_net::Predictor* predictor_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileImpl);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IMPL_H_