Move ZoomObserver, ZoomController and ZoomEventManager to components/.

chrome/browser/profiles/off_the_record_profile_impl.cc

Index: chrome/browser/profiles/off_the_record_profile_impl.cc
diff --git a/chrome/browser/profiles/off_the_record_profile_impl.cc b/chrome/browser/profiles/off_the_record_profile_impl.cc
index 1c49110d4758316eee40fab68a852f2d2cf84fb5..74d3eb1c5ab49b086ff483926ff3f8fe5e2b34b3 100644
--- a/chrome/browser/profiles/off_the_record_profile_impl.cc
+++ b/chrome/browser/profiles/off_the_record_profile_impl.cc
@@ -33,7 +33,6 @@
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
 #include "chrome/browser/ui/zoom/chrome_zoom_level_otr_delegate.h"
-#include "chrome/browser/ui/zoom/zoom_event_manager.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ -48,6 +47,7 @@
 #include "content/public/browser/storage_partition.h"
 #include "content/public/browser/url_data_source.h"
 #include "content/public/browser/web_contents.h"
+#include "extensions/browser/ui/zoom/zoom_event_manager.h"
 #include "net/http/http_server_properties.h"
 #include "net/http/transport_security_state.h"
 #include "storage/browser/database/database_tracker.h"
@@ -238,7 +238,7 @@ scoped_ptr<content::ZoomLevelDelegate>
 OffTheRecordProfileImpl::CreateZoomLevelDelegate(
     const base::FilePath& partition_path) {
   return make_scoped_ptr(new chrome::ChromeZoomLevelOTRDelegate(
-      ZoomEventManager::GetForBrowserContext(this)->GetWeakPtr()));
+      extensions::ZoomEventManager::GetForBrowserContext(this)->GetWeakPtr()));
 }
 
 scoped_refptr<base::SequencedTaskRunner>