Move ZoomObserver, ZoomController and ZoomEventManager to components/.

chrome/browser/ui/toolbar/wrench_menu_model.cc

Index: chrome/browser/ui/toolbar/wrench_menu_model.cc
diff --git a/chrome/browser/ui/toolbar/wrench_menu_model.cc b/chrome/browser/ui/toolbar/wrench_menu_model.cc
index eda373c6fc847a007e71f9571572822919434eed..79e358203430e500496ec8c0100a5f277e59d7b6 100644
--- a/chrome/browser/ui/toolbar/wrench_menu_model.cc
+++ b/chrome/browser/ui/toolbar/wrench_menu_model.cc
@@ -37,8 +37,6 @@
 #include "chrome/browser/ui/toolbar/bookmark_sub_menu_model.h"
 #include "chrome/browser/ui/toolbar/encoding_menu_controller.h"
 #include "chrome/browser/ui/toolbar/recent_tabs_sub_menu_model.h"
-#include "chrome/browser/ui/zoom/zoom_controller.h"
-#include "chrome/browser/ui/zoom/zoom_event_manager.h"
 #include "chrome/browser/upgrade_detector.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
@@ -48,6 +46,8 @@
 #include "chrome/grit/generated_resources.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/signin/core/common/profile_management_switches.h"
+#include "components/ui/zoom/zoom_controller.h"
+#include "components/ui/zoom/zoom_event_manager.h"
 #include "content/public/browser/host_zoom_map.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/notification_service.h"
@@ -285,10 +285,10 @@ WrenchMenuModel::WrenchMenuModel(ui::AcceleratorProvider* provider,
   Build();
   UpdateZoomControls();
 
-  browser_zoom_subscription_ = ZoomEventManager::GetForBrowserContext(
-      browser->profile())->AddZoomLevelChangedCallback(
-          base::Bind(&WrenchMenuModel::OnZoomLevelChanged,
-                     base::Unretained(this)));
+  browser_zoom_subscription_ =
+      ui_zoom::ZoomEventManager::GetForBrowserContext(browser->profile())
+          ->AddZoomLevelChangedCallback(base::Bind(
+              &WrenchMenuModel::OnZoomLevelChanged, base::Unretained(this)));
 
   tab_strip_model_->AddObserver(this);
 
@@ -1068,7 +1068,7 @@ void WrenchMenuModel::CreateZoomMenu() {
 void WrenchMenuModel::UpdateZoomControls() {
   int zoom_percent = 100;
   if (browser_->tab_strip_model()->GetActiveWebContents()) {
-    zoom_percent = ZoomController::FromWebContents(
+    zoom_percent = ui_zoom::ZoomController::FromWebContents(
                        browser_->tab_strip_model()->GetActiveWebContents())
                        ->GetZoomPercent();
   }