Navigation transitions (web to native app): Pass data after starting provisional load (Chrome side)

content/browser/web_contents/web_contents_android.cc

Index: content/browser/web_contents/web_contents_android.cc
diff --git a/content/browser/web_contents/web_contents_android.cc b/content/browser/web_contents/web_contents_android.cc
index 1bef8a3c293fc4e4874296fb7f62aac40b68f9ae..50ed3757b9e1018903820db0f770865e2f8d38aa 100644
--- a/content/browser/web_contents/web_contents_android.cc
+++ b/content/browser/web_contents/web_contents_android.cc
@@ -324,10 +324,26 @@ void WebContentsAndroid::DidDeferAfterResponseStarted(
   }
 }
 
-void WebContentsAndroid::DidStartNavigationTransitionForFrame(int64 frame_id) {
+void WebContentsAndroid::DidStartNavigationTransitionForFrame(
+    int64 frame_id,
+    const TransitionLayerData& transition_data) {
   JNIEnv* env = AttachCurrentThread();
+
+  ScopedJavaLocalRef<jstring> jstring_css_selector(
+      ConvertUTF8ToJavaString(env, transition_data.css_selector));
+
   Java_WebContentsImpl_didStartNavigationTransitionForFrame(
-      env, obj_.obj(), frame_id);
+      env, obj_.obj(), frame_id, jstring_css_selector.obj());
+
+  std::vector<TransitionElement>::const_iterator it =
+      transition_data.elements.begin();
+  for (; it != transition_data.elements.end(); ++it) {
+    ScopedJavaLocalRef<jstring> jstring_name(ConvertUTF8ToJavaString(env,
+                                                                     it->name));
+    Java_WebContentsImpl_addNavigationTransitionElements(
+        env, obj_.obj(), jstring_name.obj(),
+        it->rect.x(), it->rect.y(), it->rect.width(), it->rect.height());
+  }
 }
 
 void WebContentsAndroid::EvaluateJavaScript(JNIEnv* env,