Implement touch events for site-isolation.

content/browser/browser_plugin/browser_plugin_guest.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 "content/browser/browser_plugin/browser_plugin_guest.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 731 matching lines @@
 }
 
 void BrowserPluginGuest::OnWillAttachComplete(
     WebContentsImpl* embedder_web_contents,
     const BrowserPluginHostMsg_Attach_Params& params) {
   bool use_cross_process_frames =
       BrowserPluginGuestMode::UseCrossProcessFramesForGuests();
   // If a RenderView has already been created for this new window, then we need
   // to initialize the browser-side state now so that the RenderFrameHostManager
   // does not create a new RenderView on navigation.
+  // TODO(wjmaclean): this pathway doesn't seem to ever get hit when using
+  // cross-process-frames ... should it be removed? Or am I just missing a
+  // use case?
   if (!use_cross_process_frames && has_render_view_) {
     // This will trigger a callback to RenderViewReady after a round-trip IPC.
     static_cast<RenderViewHostImpl*>(GetWebContents()->GetRenderViewHost())
         ->GetWidget()
         ->Init();
     GetWebContents()->GetMainFrame()->Init();
     WebContentsViewGuest* web_contents_view =
         static_cast<WebContentsViewGuest*>(GetWebContents()->GetView());
     if (!web_contents()->GetRenderViewHost()->GetWidget()->GetView()) {
       web_contents_view->CreateViewForWidget(
@@ skipping 19 matching lines @@
 }
 
 void BrowserPluginGuest::OnDetach(int browser_plugin_instance_id) {
   if (!attached())
     return;
 
   // This tells BrowserPluginGuest to queue up all IPCs to BrowserPlugin until
   // it's attached again.
   attached_ = false;
 
-  RenderWidgetHostViewGuest* rwhv = static_cast<RenderWidgetHostViewGuest*>(
+  RenderWidgetHostViewBase* rwhv = static_cast<RenderWidgetHostViewGuest*>(

[kenrb, 2016/02/25 00:58:04]

I don't understand this change. Can the guest WebContents have an RWHV that
isn't RWHVGuest? If so, the cast is still wrong.

[wjmaclean, 2016/02/25 12:23:02]

I changed one side of the cast, but not the other - fixed. Here I'm trying to
use the weakest cast possible, though we can restrict it to RWHVG if that's
considered better.

        web_contents()->GetRenderWidgetHostView());
   // If the guest is terminated, our host may already be gone.
   if (rwhv)
     rwhv->UnregisterSurfaceNamespaceId();
 
   delegate_->DidDetach();
 }
 
 void BrowserPluginGuest::OnDragStatusUpdate(int browser_plugin_instance_id,
                                             blink::WebDragStatus drag_status,
@@ skipping 211 matching lines @@
           range, character_bounds);
 }
 #endif
 
 void BrowserPluginGuest::SetContextMenuPosition(const gfx::Point& position) {
   if (delegate_)
     delegate_->SetContextMenuPosition(position);
 }
 
 }  // namespace content