Migrate HostZoomMap to live in StoragePartition.

chrome/browser/profiles/profile_impl.h

Index: chrome/browser/profiles/profile_impl.h
diff --git a/chrome/browser/profiles/profile_impl.h b/chrome/browser/profiles/profile_impl.h
index 3869b9af53ecb3d438867be113492ca6375c7575..1296e4ac7397ef8e1efbdce16f5bfbb24f38acd0 100644
--- a/chrome/browser/profiles/profile_impl.h
+++ b/chrome/browser/profiles/profile_impl.h
@@ -75,6 +75,8 @@ class ProfileImpl : public Profile {
   static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // content::BrowserContext implementation:
+  virtual scoped_ptr<content::ZoomLevelPrefsStore>
+      CreateZoomLevelPrefsStore() OVERRIDE;
   virtual base::FilePath GetPath() const OVERRIDE;
   virtual content::DownloadManagerDelegate*
       GetDownloadManagerDelegate() OVERRIDE;
@@ -172,11 +174,7 @@ class ProfileImpl : public Profile {
   // Does final initialization. Should be called after prefs were loaded.
   void DoFinalInit();
 
-  void InitHostZoomMap();
-
   void OnDefaultZoomLevelChanged();
-  void OnZoomLevelChanged(
-      const content::HostZoomMap::ZoomLevelChange& change);
 
   // Does final prefs initialization and calls Init().
   void OnPrefsLoaded(bool success);