Tracks changes to zoom icon and zoom percentage. Notifies browser window if the icon should be chan…

chrome/browser/ui/tab_contents/tab_contents_wrapper.h

Index: chrome/browser/ui/tab_contents/tab_contents_wrapper.h
diff --git a/chrome/browser/ui/tab_contents/tab_contents_wrapper.h b/chrome/browser/ui/tab_contents/tab_contents_wrapper.h
index 3fc5e14ef66cd57737255cc285abaf671cf706b4..326c05b6e3a262f69db7ae33a1e50925250311ad 100644
--- a/chrome/browser/ui/tab_contents/tab_contents_wrapper.h
+++ b/chrome/browser/ui/tab_contents/tab_contents_wrapper.h
@@ -46,6 +46,7 @@ class TabSpecificContentSettings;
 class ThumbnailGenerator;
 class TranslateTabHelper;
 class WebIntentPickerController;
+class ZoomTabHelper;
 
 #if defined(ENABLE_ONE_CLICK_SIGNIN)
 class OneClickSigninHelper;
@@ -206,6 +207,10 @@ class TabContentsWrapper : public content::WebContentsObserver {
     return web_intent_picker_controller_.get();
   }
 
+  ZoomTabHelper* zoom_tab_helper() {
+    return zoom_tab_helper_.get();
+  }
+
   // Overrides -----------------------------------------------------------------
 
   // content::WebContentsObserver overrides:
@@ -263,6 +268,8 @@ class TabContentsWrapper : public content::WebContentsObserver {
   // Handles displaying a web intents picker to the user.
   scoped_ptr<WebIntentPickerController> web_intent_picker_controller_;
 
+  scoped_ptr<ZoomTabHelper> zoom_tab_helper_;
+
   // Per-tab observers ---------------------------------------------------------
   // (These provide no API for callers; objects that need to exist 1:1 with tabs
   // and silently do their thing live here.)