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

content/browser/frame_host/render_frame_host_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/browser/frame_host/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 737 matching lines @@
     IPC_MESSAGE_HANDLER(FrameHostMsg_SerializeAsMHTMLResponse,
                         OnSerializeAsMHTMLResponse)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SelectionChanged, OnSelectionChanged)
     IPC_MESSAGE_HANDLER(FrameHostMsg_FocusedNodeChanged, OnFocusedNodeChanged)
     IPC_MESSAGE_HANDLER(FrameHostMsg_SetHasReceivedUserGesture,
                         OnSetHasReceivedUserGesture)
 #if defined(USE_EXTERNAL_POPUP_MENU)
     IPC_MESSAGE_HANDLER(FrameHostMsg_ShowPopup, OnShowPopup)
     IPC_MESSAGE_HANDLER(FrameHostMsg_HidePopup, OnHidePopup)
 #endif
+#if defined(OS_ANDROID)
+    IPC_MESSAGE_HANDLER(FrameHostMsg_NavigationHandledByEmbedder,
+                        OnNavigationHandledByEmbedder)
+#endif
     IPC_MESSAGE_HANDLER(FrameHostMsg_ShowCreatedWindow, OnShowCreatedWindow)
   IPC_END_MESSAGE_MAP()
 
   // No further actions here, since we may have been deleted.
   return handled;
 }
 
 void RenderFrameHostImpl::OnAssociatedInterfaceRequest(
     const std::string& interface_name,
     mojo::ScopedInterfaceEndpointHandle handle) {
@@ skipping 1489 matching lines @@
 }
 
 void RenderFrameHostImpl::OnHidePopup() {
   RenderViewHostDelegateView* view =
       render_view_host_->delegate_->GetDelegateView();
   if (view)
     view->HidePopupMenu();
 }
 #endif
 
+#if defined(OS_ANDROID)
+void RenderFrameHostImpl::OnNavigationHandledByEmbedder() {
+  frame_tree_node_->StopLoading();
+}
+#endif
+
 void RenderFrameHostImpl::OnShowCreatedWindow(int pending_widget_routing_id,
                                               WindowOpenDisposition disposition,
                                               const gfx::Rect& initial_rect,
                                               bool user_gesture) {
   delegate_->ShowCreatedWindow(GetProcess()->GetID(), pending_widget_routing_id,
                                disposition, initial_rect, user_gesture);
 }
 
 void RenderFrameHostImpl::RegisterMojoInterfaces() {
   device::GeolocationServiceContext* geolocation_service_context =
@@ skipping 1179 matching lines @@
   // There is no pending NavigationEntry in these cases, so pass 0 as the
   // pending_nav_entry_id. If the previous handle was a prematurely aborted
   // navigation loaded via LoadDataWithBaseURL, propagate the entry id.
   return NavigationHandleImpl::Create(
       params.url, params.redirects, frame_tree_node_, is_renderer_initiated,
       params.was_within_same_page, base::TimeTicks::Now(),
       entry_id_for_data_nav, false);  // started_from_context_menu
 }
 
 }  // namespace content