Fix <webview> cursors with --site-per-process and --isolate-extensions.

content/browser/frame_host/render_widget_host_view_guest.cc

 // Copyright 2014 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_widget_host_view_guest.h"
 
 #include <utility>
 
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "build/build_config.h"
 #include "cc/surfaces/surface.h"
 #include "cc/surfaces/surface_factory.h"
 #include "cc/surfaces/surface_manager.h"
 #include "cc/surfaces/surface_sequence.h"
 #include "content/browser/browser_plugin/browser_plugin_guest.h"
 #include "content/browser/compositor/surface_utils.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_delegate.h"
 #include "content/browser/renderer_host/render_widget_host_input_event_router.h"
 #include "content/common/browser_plugin/browser_plugin_messages.h"
 #include "content/common/frame_messages.h"
 #include "content/common/input/web_touch_event_traits.h"
+#include "content/common/site_isolation_policy.h"
 #include "content/common/view_messages.h"
 #include "content/common/webplugin_geometry.h"
 #include "content/public/common/content_switches.h"
 #include "gpu/ipc/common/gpu_messages.h"
 #include "skia/ext/platform_canvas.h"
 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
 
 #if defined(OS_MACOSX)
 #import "content/browser/renderer_host/render_widget_host_view_mac_dictionary_helper.h"
 #endif
@@ skipping 291 matching lines @@
   return rwhv->GetNativeViewAccessible();
 }
 
 void RenderWidgetHostViewGuest::UpdateCursor(const WebCursor& cursor) {
   // InterstitialPages are not WebContents so we cannot intercept
   // ViewHostMsg_SetCursor for interstitial pages in BrowserPluginGuest.
   // All guest RenderViewHosts have RenderWidgetHostViewGuests however,
   // and so we will always hit this code path.
   if (!guest_)
     return;
-  guest_->SendMessageToEmbedder(
-      new BrowserPluginMsg_SetCursor(guest_->browser_plugin_instance_id(),
-                                     cursor));
-
+  if (SiteIsolationPolicy::AreCrossProcessFramesPossible()) {
+    RenderWidgetHostViewBase* rwhvb = GetOwnerRenderWidgetHostView();
+    if (rwhvb)
+      rwhvb->UpdateCursor(cursor);
+  } else {
+    guest_->SendMessageToEmbedder(new BrowserPluginMsg_SetCursor(
+        guest_->browser_plugin_instance_id(), cursor));
+  }
 }
 
 void RenderWidgetHostViewGuest::SetIsLoading(bool is_loading) {
   platform_view_->SetIsLoading(is_loading);
 }
 
 void RenderWidgetHostViewGuest::TextInputStateChanged(
     const ViewHostMsg_TextInputState_Params& params) {
   if (!guest_)
     return;
@@ skipping 263 matching lines @@
     if (gesture_event.type == blink::WebInputEvent::GestureScrollUpdate &&
         gesture_event.data.scrollUpdate.inertial) {
       return;
     }
     host_->ForwardGestureEvent(gesture_event);
     return;
   }
 }
 
 }  // namespace content