Fix the browser not being notified when a webview embedder handles a navigation.

content/renderer/render_frame_impl.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/renderer/render_frame_impl.h"
 
 #include <map>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 5246 matching lines @@
 
 #ifdef OS_ANDROID
   bool render_view_was_created_by_renderer =
       render_view_->was_created_by_renderer_;
   // The handlenavigation API is deprecated and will be removed once
   // crbug.com/325351 is resolved.
   if (GetContentClient()->renderer()->HandleNavigation(
           this, is_content_initiated, render_view_was_created_by_renderer,
           frame_, info.urlRequest, info.navigationType, info.defaultPolicy,
           is_redirect)) {
+    if (IsBrowserSideNavigationEnabled()) {
+      // Need to let the browser know so it can notify its observers.
+      Send(new FrameHostMsg_NavigationHandledByEmbedder(routing_id_));
+    }
     return blink::WebNavigationPolicyIgnore;
   }
 #endif
 
   Referrer referrer(
       RenderViewImpl::GetReferrerFromRequest(frame_, info.urlRequest));
 
   // Webkit is asking whether to navigate to a new URL.
   // This is fine normally, except if we're showing UI from one security
   // context and they're trying to navigate to a different context.
@@ skipping 1575 matching lines @@
   // event target. Potentially a Pepper plugin will receive the event.
   // In order to tell whether a plugin gets the last mouse event and which it
   // is, we set |pepper_last_mouse_event_target_| to null here. If a plugin gets
   // the event, it will notify us via DidReceiveMouseEvent() and set itself as
   // |pepper_last_mouse_event_target_|.
   pepper_last_mouse_event_target_ = nullptr;
 #endif
 }
 
 }  // namespace content