second stage

third_party/WebKit/public/web/WebFrameClient.h

Index: third_party/WebKit/public/web/WebFrameClient.h
diff --git a/third_party/WebKit/public/web/WebFrameClient.h b/third_party/WebKit/public/web/WebFrameClient.h
index b4b8a74a8b5c643fa364d43ab082f79f6f730e82..82b020bfcbaa7c451f472d59a3dbe62534c19a4c 100644
--- a/third_party/WebKit/public/web/WebFrameClient.h
+++ b/third_party/WebKit/public/web/WebFrameClient.h
@@ -111,6 +111,9 @@ class BLINK_EXPORT WebFrameClient {
 
   // Factory methods -----------------------------------------------------
 
+  // Returns a unique ID within this renderer process.
+  virtual int32_t getUniqueElementIdForMimeHandlerView() { return 0; }
+
   // May return null.
   virtual WebPlugin* createPlugin(WebLocalFrame*, const WebPluginParams&) {
     return 0;