Move creation and ownership of HostZoomMap to content instead of having every embedder do this.

chrome/browser/profiles/off_the_record_profile_impl_unittest.cc

Index: chrome/browser/profiles/off_the_record_profile_impl_unittest.cc
===================================================================
--- chrome/browser/profiles/off_the_record_profile_impl_unittest.cc	(revision 122827)
+++ chrome/browser/profiles/off_the_record_profile_impl_unittest.cc	(working copy)
@@ -24,20 +24,14 @@
 class TestingProfileWithHostZoomMap : public TestingProfile,
                                       public content::NotificationObserver {
  public:
-  TestingProfileWithHostZoomMap() {}
+  TestingProfileWithHostZoomMap() {
+    HostZoomMap* host_zoom_map = HostZoomMap::GetForBrowserContext(this);
+    registrar_.Add(this, content::NOTIFICATION_ZOOM_LEVEL_CHANGED,
+                     content::Source<HostZoomMap>(host_zoom_map));
+  }
 
   virtual ~TestingProfileWithHostZoomMap() {}
 
-  virtual HostZoomMap* GetHostZoomMap() {
-    if (!host_zoom_map_) {
-      host_zoom_map_ = HostZoomMap::Create();
-
-      registrar_.Add(this, content::NOTIFICATION_ZOOM_LEVEL_CHANGED,
-                     content::Source<HostZoomMap>(host_zoom_map_));
-    }
-    return host_zoom_map_.get();
-  }
-
   virtual Profile* GetOffTheRecordProfile() OVERRIDE {
     if (!off_the_record_profile_.get())
       off_the_record_profile_.reset(CreateOffTheRecordProfile());
@@ -70,7 +64,6 @@
 
  private:
   content::NotificationRegistrar registrar_;
-  scoped_refptr<HostZoomMap> host_zoom_map_;
   scoped_ptr<Profile> off_the_record_profile_;
   scoped_ptr<SSLConfigServiceManager> ssl_config_service_manager_;
 
@@ -133,7 +126,8 @@
   ASSERT_TRUE(parent_profile->GetOffTheRecordPrefs());
 
   // Prepare parent host zoom map.
-  HostZoomMap* parent_zoom_map = parent_profile->GetHostZoomMap();
+  HostZoomMap* parent_zoom_map =
+      HostZoomMap::GetForBrowserContext(parent_profile);
   ASSERT_TRUE(parent_zoom_map);
 
   parent_zoom_map->SetZoomLevel(host, zoom_level_25);
@@ -147,7 +141,8 @@
       new OffTheRecordProfileImpl(parent_profile.get()));
 
   // Prepare child host zoom map.
-  HostZoomMap* child_zoom_map = child_profile->GetHostZoomMap();
+  HostZoomMap* child_zoom_map =
+      HostZoomMap::GetForBrowserContext(child_profile);
   ASSERT_TRUE(child_zoom_map);
 
   // Verity.