Navigation transitions: Expose documentLoadedInFrame to WebContentsObserverAndroid.

The TransitionPageHelper in the embedder listens for this before fading out the transition layer.

Design doc: https://docs.google.com/a/chromium.org/document/d/17jg1RRL3RI969cLwbKBIcoGDsPwqaEdBxafGNYGwiY4/edit# 
Implementation details: https://docs.google.com/a/chromium.org/document/d/1kREPtFJaeLoDKwrfmrYTD7DHCdxX1RzFBga2gNY8lyE/edit#heading=h.bng2kpmyvxq5 
BUG=370696

Review URL: https://codereview.chromium.org/320493002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276065 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 13 insertions, 0 deletions

diff --git a/content/browser/android/web_contents_observer_android.cc b/content/browser/android/web_contents_observer_android.cc
index 16ad09f..344a901 100644
--- a/content/browser/android/web_contents_observer_android.cc
+++ b/content/browser/android/web_contents_observer_android.cc
@@ -227,6 +227,17 @@ void WebContentsObserverAndroid::DidFinishLoad(
       env, obj.obj(), frame_id, jstring_url.obj(), is_main_frame);
 }
 
+void WebContentsObserverAndroid::DocumentLoadedInFrame(
+    int64 frame_id,
+    RenderViewHost* render_view_host) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj(weak_java_observer_.get(env));
+  if (obj.is_null())
+    return;
+  Java_WebContentsObserverAndroid_documentLoadedInFrame(
+      env, obj.obj(), frame_id);
+}
+
 void WebContentsObserverAndroid::NavigationEntryCommitted(
     const LoadCommittedDetails& load_details) {
   JNIEnv* env = AttachCurrentThread();
diff --git a/content/browser/android/web_contents_observer_android.h b/content/browser/android/web_contents_observer_android.h
index 9d4421f..dbae8c8 100644
--- a/content/browser/android/web_contents_observer_android.h
+++ b/content/browser/android/web_contents_observer_android.h
@@ -74,6 +74,8 @@ class WebContentsObserverAndroid : public WebContentsObserver {
                              const GURL& validated_url,
                              bool is_main_frame,
                              RenderViewHost* render_view_host) OVERRIDE;
+  virtual void DocumentLoadedInFrame(int64 frame_id,
+                                     RenderViewHost* render_view_host) OVERRIDE;
   virtual void NavigationEntryCommitted(
       const LoadCommittedDetails& load_details) OVERRIDE;
   virtual void WebContentsDestroyed() OVERRIDE;