Change ScopedPtrHashMap's 2nd template parameter

chrome/browser/android/compositor/tab_content_manager.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_ANDROID_COMPOSITOR_TAB_CONTENT_MANAGER_H_
 #define CHROME_BROWSER_ANDROID_COMPOSITOR_TAB_CONTENT_MANAGER_H_
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
@@ skipping 81 matching lines @@
                                               jint min_forbidden_id);
   void GetDecompressedThumbnail(JNIEnv* env, jobject obj, jint tab_id);
 
   // ThumbnailCacheObserver implementation;
   void OnFinishedThumbnailRead(TabId tab_id) override;
 
  private:
   class TabReadbackRequest;
   typedef base::hash_map<int, scoped_refptr<cc::Layer>> LayerMap;
   typedef base::hash_map<int, scoped_refptr<ThumbnailLayer>> ThumbnailLayerMap;
-  typedef base::ScopedPtrHashMap<int, TabReadbackRequest> TabReadbackRequestMap;
+  typedef base::ScopedPtrHashMap<int, scoped_ptr<TabReadbackRequest>>
+      TabReadbackRequestMap;
 
   void PutThumbnailIntoCache(int tab_id,
                              float thumbnail_scale,
                              const SkBitmap& bitmap);
 
   scoped_ptr<ThumbnailCache> thumbnail_cache_;
   ThumbnailLayerMap static_layer_cache_;
   LayerMap live_layer_list_;
   TabReadbackRequestMap pending_tab_readbacks_;
 
   JavaObjectWeakGlobalRef weak_java_tab_content_manager_;
   base::WeakPtrFactory<TabContentManager> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentManager);
 };
 
 bool RegisterTabContentManager(JNIEnv* env);
 
 }  // namespace android
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_TAB_CONTENT_MANAGER_H_