Revert 178747

content/renderer/render_widget.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/renderer/render_widget.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 1381 matching lines @@
   params.needs_ack = false;
   params.scale_factor = device_scale_factor_;
 
   Send(new ViewHostMsg_UpdateRect(routing_id_, params));
   next_paint_flags_ = 0;
   need_update_rect_for_auto_resize_ = false;
 }
 
 void RenderWidget::scheduleComposite() {
   TRACE_EVENT0("gpu", "RenderWidget::scheduleComposite");
-  if (RenderThreadImpl::current()->compositor_thread() &&
-      web_layer_tree_view_) {
-    web_layer_tree_view_->setNeedsRedraw();
+  if (WebWidgetHandlesCompositorScheduling()) {
+    webwidget_->composite(false);
   } else {
     // TODO(nduca): replace with something a little less hacky.  The reason this
     // hack is still used is because the Invalidate-DoDeferredUpdate loop
     // contains a lot of host-renderer synchronization logic that is still
     // important for the accelerated compositing case. The option of simply
     // duplicating all that code is less desirable than "faking out" the
     // invalidation path using a magical damage rect.
     didInvalidateRect(WebRect(0, 0, 1, 1));
   }
 }
@@ skipping 687 matching lines @@
 
 bool RenderWidget::WillHandleMouseEvent(const WebKit::WebMouseEvent& event) {
   return false;
 }
 
 bool RenderWidget::WillHandleGestureEvent(
     const WebKit::WebGestureEvent& event) {
   return false;
 }
 
+bool RenderWidget::WebWidgetHandlesCompositorScheduling() const {
+  return false;
+}
+
 bool RenderWidget::HasTouchEventHandlersAt(const gfx::Point& point) const {
   return true;
 }
 
 }  // namespace content