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

content/browser/web_contents/web_contents_android.cc

 // Copyright 2013 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 "content/browser/web_contents/web_contents_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
@@ skipping 320 matching lines @@
 
   std::vector<GURL>::const_iterator iter = entering_stylesheets.begin();
   for (; iter != entering_stylesheets.end(); ++iter) {
     ScopedJavaLocalRef<jstring> jstring_url(
         ConvertUTF8ToJavaString(env, iter->spec()));
     Java_WebContentsImpl_addEnteringStylesheetToTransition(
         env, obj_.obj(), jstring_url.obj());
   }
 }
 
-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,
                                             jobject obj,
                                             jstring script,
                                             jobject callback) {
   RenderViewHost* rvh = web_contents_->GetRenderViewHost();
   DCHECK(rvh);
 
   if (!rvh->IsRenderViewLive()) {
@@ skipping 35 matching lines @@
   ViewMsg_PostMessage_Params params;
   params.source_origin = ConvertJavaStringToUTF16(env, source_origin);
   params.target_origin = ConvertJavaStringToUTF16(env, target_origin);
   params.data = ConvertJavaStringToUTF16(env, message);
   params.is_data_raw_string = true;
   params.source_routing_id = MSG_ROUTING_NONE;
   host->Send(new ViewMsg_PostMessageEvent(host->GetRoutingID(), params));
 }
 
 }  // namespace content