Provide a vsync notification to the renderer

content/browser/renderer_host/render_widget_host_impl.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/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 331 matching lines @@
     IPC_MESSAGE_HANDLER(ViewHostMsg_RenderViewGone, OnRenderViewGone)
     IPC_MESSAGE_HANDLER(ViewHostMsg_Close, OnClose)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateScreenRects_ACK,
                         OnUpdateScreenRectsAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestMove, OnRequestMove)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SetTooltipText, OnSetTooltipText)
     IPC_MESSAGE_HANDLER(ViewHostMsg_PaintAtSize_ACK, OnPaintAtSizeAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_CompositorSurfaceBuffersSwapped,
                         OnCompositorSurfaceBuffersSwapped)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SwapCompositorFrame, OnSwapCompositorFrame)
+    IPC_MESSAGE_HANDLER(ViewHostMsg_EnableVSyncNotification,
+                        OnEnableVSyncNotification)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateRect, OnUpdateRect)
     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateIsDelayed, OnUpdateIsDelayed)
     IPC_MESSAGE_HANDLER(ViewHostMsg_HandleInputEvent_ACK, OnInputEventAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_BeginSmoothScroll, OnBeginSmoothScroll)
     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectRange_ACK, OnSelectRangeAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_MoveCaret_ACK, OnMsgMoveCaretAck)
     IPC_MESSAGE_HANDLER(ViewHostMsg_Focus, OnFocus)
     IPC_MESSAGE_HANDLER(ViewHostMsg_Blur, OnBlur)
     IPC_MESSAGE_HANDLER(ViewHostMsg_HasTouchEventHandlers,
                         OnHasTouchEventHandlers)
@@ skipping 853 matching lines @@
   WebKit::WebScreenInfo screen_info;
   GetWebScreenInfo(&screen_info);
   Send(new ViewMsg_ScreenInfoChanged(GetRoutingID(), screen_info));
 }
 
 void RenderWidgetHostImpl::UpdateVSyncParameters(base::TimeTicks timebase,
                                                  base::TimeDelta interval) {
   Send(new ViewMsg_UpdateVSyncParameters(GetRoutingID(), timebase, interval));
 }
 
+void RenderWidgetHostImpl::SendVSync(base::TimeTicks frame_time) {
+  Send(new ViewMsg_DidVSync(GetRoutingID(), frame_time));
+}
+
 void RenderWidgetHostImpl::RendererExited(base::TerminationStatus status,
                                           int exit_code) {
   // Clearing this flag causes us to re-create the renderer when recovering
   // from a crashed renderer.
   renderer_initialized_ = false;
 
   waiting_for_screen_rects_ack_ = false;
 
   // Must reset these to ensure that mouse move/wheel events work with a new
   // renderer.
@@ skipping 309 matching lines @@
         frame.metadata.page_scale_factor,
         frame.metadata.min_page_scale_factor,
         frame.metadata.max_page_scale_factor,
         gfx::ToCeiledSize(frame.metadata.root_layer_size),
         frame.metadata.location_bar_offset,
         frame.metadata.location_bar_content_translation);
   }
 #endif
 }
 
+void RenderWidgetHostImpl::OnEnableVSyncNotification(bool enable) {
+  TRACE_EVENT1("renderer_host",
+      "RenderWidgetHostImpl::OnEnableVSyncNotification", "enable", enable);
+  view_->EnableVSyncNotification(enable);
+}
+
 void RenderWidgetHostImpl::OnUpdateRect(
     const ViewHostMsg_UpdateRect_Params& params) {
   TRACE_EVENT0("renderer_host", "RenderWidgetHostImpl::OnUpdateRect");
   TimeTicks paint_start = TimeTicks::Now();
 
   // Update our knowledge of the RenderWidget's size.
   current_size_ = params.view_size;
   // Update our knowledge of the RenderWidget's scroll offset.
   last_scroll_offset_ = params.scroll_offset;
 
@@ skipping 827 matching lines @@
     return;
 
   OnRenderAutoResized(new_size);
 }
 
 void RenderWidgetHostImpl::DetachDelegate() {
   delegate_ = NULL;
 }
 
 }  // namespace content