Fix crashes due to gfx::Image unsafe thread passing

chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc

 // 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.
 
 #include "chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h"
 
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
@@ skipping 27 matching lines @@
 using bookmarks::android::JavaBookmarkIdGetType;
 using bookmarks::BookmarkNode;
 using bookmarks::BookmarkType;
 using content::WebContents;
 using content::BrowserThread;
 using enhanced_bookmarks::ImageRecord;
 
 namespace {
 
 void Callback(ScopedJavaGlobalRef<jobject>* j_callback,
-              const ImageRecord& image_record) {
+              scoped_refptr<ImageRecord> image_record) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
   scoped_ptr<ScopedJavaGlobalRef<jobject> > j_callback_ptr(j_callback);
   ScopedJavaLocalRef<jstring> j_url =
-      base::android::ConvertUTF8ToJavaString(env, image_record.url.spec());
+      base::android::ConvertUTF8ToJavaString(env, image_record->url.spec());
 
-  SkBitmap bitmap = image_record.image.AsBitmap();
+  SkBitmap bitmap = image_record->image->AsBitmap();
   ScopedJavaLocalRef<jobject> j_bitmap;
   if (!bitmap.isNull()) {
     j_bitmap = gfx::ConvertToJavaBitmap(&bitmap);
   }
 
   enhanced_bookmarks::android::Java_SalientImageCallback_onSalientImageReady(
       env, j_callback_ptr->obj(), j_bitmap.Release(), j_url.Release());
 }
 
 }  // namespace
@@ skipping 251 matching lines @@
   return reinterpret_cast<jlong>(new EnhancedBookmarksBridge(
         env, obj, ProfileAndroid::FromProfileAndroid(j_profile)));
 }
 
 bool RegisterEnhancedBookmarksBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android
 }  // namespace enhanced_bookmarks