Fix window.open issue in Document mode on Android.

content/browser/web_contents/web_contents_impl.h

Index: content/browser/web_contents/web_contents_impl.h
diff --git a/content/browser/web_contents/web_contents_impl.h b/content/browser/web_contents/web_contents_impl.h
index dc1eede9f4f4b5a4e3438cc01bd3dcb41b94b969..dac56974b7e4492e0a84cd8c0e1a92d4f532f8f9 100644
--- a/content/browser/web_contents/web_contents_impl.h
+++ b/content/browser/web_contents/web_contents_impl.h
@@ -133,6 +133,10 @@ class CONTENT_EXPORT WebContentsImpl
   // load. This is not safe to do in any context that a web page could get a
   // reference to the DOMWindow before the first page load.
   bool CreateRenderViewForInitialEmptyDocument();
+
+  // In Document Mode, unblocks requests from renderer after the activity and
+  // tab have been asynchronously initialized in Java.
+  void ResumeLoadingCreatedWebContents();
 #endif
 
   // Expose the render manager for testing.
@@ -915,6 +919,9 @@ class CONTENT_EXPORT WebContentsImpl
   // called once as this call also removes it from the internal map.
   WebContentsImpl* GetCreatedWindow(int route_id);
 
+  // Resume blocked requests for both the RenderViewHost and RenderFrameHost.
+  void ResumeRequestsForCreatedWindow(WebContentsImpl& new_contents);
+
   // Tracking loading progress -------------------------------------------------
 
   // Resets the tracking state of the current load progress.