Add "Request app banner" context menu in DevTools

components/web_contents_delegate_android/web_contents_delegate_android.cc

 // Copyright (c) 2012 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 "components/web_contents_delegate_android/web_contents_delegate_android.h"
 
 #include <android/keycodes.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
@@ skipping 410 matching lines @@
     WebContents* web_contents,
     const gfx::Rect& anchor_in_root_view) {
   if (!validation_message_bubble_)
     return;
   RenderWidgetHostView* rwhv = web_contents->GetRenderWidgetHostView();
   if (rwhv) {
     validation_message_bubble_->SetPositionRelativeToAnchor(
         rwhv->GetRenderWidgetHost(), anchor_in_root_view);
   }
 }
+
+bool WebContentsDelegateAndroid::RequestAppBanner(
+    content::WebContents* web_contents) {
+  return false;
+}
+
 // ----------------------------------------------------------------------------
 // Native JNI methods
 // ----------------------------------------------------------------------------
 
 // Register native methods
 
 bool RegisterWebContentsDelegateAndroid(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace web_contents_delegate_android