[Android] Open up API in jni bridge to fetch images from tab

chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h

Index: chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h
diff --git a/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h b/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h
index ec6f54e03b30cb6cd7b637674c976d9640a97c49..ae4e7efa5f428089dfd4c06d823e4016fff36d28 100644
--- a/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h
+++ b/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.h
@@ -15,7 +15,7 @@
 namespace enhanced_bookmarks {
 
 class BookmarkServerClusterService;
-class BookmarkImageService;
+class BookmarkImageServiceAndroid;
 
 namespace android {
 
@@ -30,6 +30,8 @@ class EnhancedBookmarksBridge : public BookmarkServerServiceObserver {
                           jstring j_url,
                           jobject j_callback);
 
+  void FetchImageForTab(JNIEnv* env, jobject obj, jobject j_web_contents);
+
   base::android::ScopedJavaLocalRef<jstring> GetBookmarkDescription(
       JNIEnv* env,
       jobject obj,
@@ -85,9 +87,9 @@ class EnhancedBookmarksBridge : public BookmarkServerServiceObserver {
   bool IsEditable(const bookmarks::BookmarkNode* node) const;
 
   JavaObjectWeakGlobalRef weak_java_ref_;
-  EnhancedBookmarkModel* enhanced_bookmark_model_;  // weak
-  BookmarkServerClusterService* cluster_service_;   // weak
-  BookmarkImageService* bookmark_image_service_;    // weak
+  EnhancedBookmarkModel* enhanced_bookmark_model_;         // weak
+  BookmarkServerClusterService* cluster_service_;          // weak
+  BookmarkImageServiceAndroid* bookmark_image_service_;    // weak
   scoped_ptr<BookmarkServerSearchService> search_service_;
   Profile* profile_;                       // weak
   DISALLOW_COPY_AND_ASSIGN(EnhancedBookmarksBridge);