Move ZoomObserver, ZoomController and ZoomEventManager to components/.

components/ui/zoom/zoom_event_manager.h

 // Copyright 2014 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_UI_ZOOM_ZOOM_EVENT_MANAGER_H_
-#define CHROME_BROWSER_UI_ZOOM_ZOOM_EVENT_MANAGER_H_
+#ifndef COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_H_
+#define COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_H_
 
 #include "base/callback_list.h"
 #include "base/memory/weak_ptr.h"
 #include "base/supports_user_data.h"
 #include "content/public/browser/host_zoom_map.h"
 
 namespace content {
 class BrowserContext;
 }  // namespace content
 
+namespace components {
+
 // This class serves as a target for event notifications from all ZoomController
 // objects. Classes that need to know about browser-specific zoom events (e.g.
 // manual-mode zoom) should subscribe here.
 class ZoomEventManager : public base::SupportsUserData::Data {
  public:
   ZoomEventManager();
   ~ZoomEventManager() override;
 
   // Returns the ZoomEventManager for the specified BrowserContext. This
   // function creates the ZoomEventManager if it hasn't been created already.
@@ skipping 16 matching lines @@
   }
 
  private:
   base::CallbackList<void(const content::HostZoomMap::ZoomLevelChange&)>
       zoom_level_changed_callbacks_;
   base::WeakPtrFactory<ZoomEventManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ZoomEventManager);
 };
 
-#endif  // CHROME_BROWSER_UI_ZOOM_ZOOM_EVENT_MANAGER_H_
+}  // namespace extensions

[James Cook, 2014/12/04 17:17:16]

nit: namespace components (elsewhere too I think)

[wjmaclean, 2014/12/04 18:27:17]

Done.

+
+#endif  // COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_H_