Add EventForwarder for routing touch events

content/browser/web_contents/web_contents_android.h

Index: content/browser/web_contents/web_contents_android.h
diff --git a/content/browser/web_contents/web_contents_android.h b/content/browser/web_contents/web_contents_android.h
index 171006b5b4610adf826986127bf2d0953e1038a0..c4e54ee25379a67cfd6459ba9a72a3148a6eab40 100644
--- a/content/browser/web_contents/web_contents_android.h
+++ b/content/browser/web_contents/web_contents_android.h
@@ -200,6 +200,10 @@ class CONTENT_EXPORT WebContentsAndroid
       JNIEnv* env,
       const base::android::JavaParamRef<jobject>& obj);
 
+  base::android::ScopedJavaLocalRef<jobject> CreateEventHandler(

[Khushal, 2017/03/02 22:08:59]

nit: GetOrCreateEventHandler since it will create the single EventHandler for
this contents only the first time this is called.

[Jinsuk Kim, 2017/03/03 06:29:21]

Done.

+      JNIEnv* env,
+      const base::android::JavaParamRef<jobject>& obj);
+
   void SetMediaSession(
       const base::android::ScopedJavaLocalRef<jobject>& j_media_session);