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

chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc

Index: chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc
diff --git a/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc b/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc
index eadcae76c0445fef41133af2fa8a0302d15dfd04..19e028f8f82512b13b3f17ad31a08a368c562c34 100644
--- a/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc
+++ b/chrome/browser/enhanced_bookmarks/android/enhanced_bookmarks_bridge.cc
@@ -7,7 +7,9 @@
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/prefs/pref_service.h"
+#include "chrome/browser/android/tab_android.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
+#include "chrome/browser/enhanced_bookmarks/android/bookmark_image_service_android.h"
 #include "chrome/browser/enhanced_bookmarks/android/bookmark_image_service_factory.h"
 #include "chrome/browser/enhanced_bookmarks/chrome_bookmark_server_cluster_service.h"
 #include "chrome/browser/enhanced_bookmarks/chrome_bookmark_server_cluster_service_factory.h"
@@ -21,7 +23,6 @@
 #include "components/bookmarks/browser/bookmark_utils.h"
 #include "components/bookmarks/common/android/bookmark_id.h"
 #include "components/bookmarks/common/android/bookmark_type.h"
-#include "components/enhanced_bookmarks/bookmark_image_service.h"
 #include "components/enhanced_bookmarks/enhanced_bookmark_model.h"
 #include "components/enhanced_bookmarks/image_record.h"
 #include "components/signin/core/browser/signin_manager.h"
@@ -75,8 +76,8 @@ EnhancedBookmarksBridge::EnhancedBookmarksBridge(JNIEnv* env,
   cluster_service_ =
       ChromeBookmarkServerClusterServiceFactory::GetForBrowserContext(profile_);
   cluster_service_->AddObserver(this);
-  bookmark_image_service_ =
-      BookmarkImageServiceFactory::GetForBrowserContext(profile_);
+  bookmark_image_service_ = static_cast<BookmarkImageServiceAndroid*>(
+      BookmarkImageServiceFactory::GetForBrowserContext(profile_));
   search_service_.reset(new BookmarkServerSearchService(
       profile_->GetRequestContext(),
       ProfileOAuth2TokenServiceFactory::GetForProfile(profile_),
@@ -108,6 +109,14 @@ void EnhancedBookmarksBridge::SalientImageForUrl(JNIEnv* env,
       url, base::Bind(&Callback, j_callback_ptr.release()));
 }
 
+void EnhancedBookmarksBridge::FetchImageForTab(JNIEnv* env,
+                                               jobject obj,
+                                               jobject j_tab) {
+  TabAndroid* tab = TabAndroid::GetNativeTab(env, j_tab);
+  bookmark_image_service_->RetrieveSalientImageFromContext(
+      tab->web_contents()->GetMainFrame(), tab->GetURL(), true);
+}

[Kibeom Kim (inactive), 2015/02/09 21:30:34]

In addition to using WebContent, since this is parallel to
BookmarkImageServiceAndroid::FinishSuccessfulPageLoadForTab . I think it's good
to put there.

[Kibeom Kim (inactive), 2015/02/09 21:57:24]

discussed offline. It's just two lines, so let's just leave it.

+
 ScopedJavaLocalRef<jstring> EnhancedBookmarksBridge::GetBookmarkDescription(
     JNIEnv* env, jobject obj, jlong id, jint type) {
   DCHECK(enhanced_bookmark_model_->loaded());