Removed requirement for the renderer to know it's process ID

content/browser/gpu/gpu_process_host_ui_shim.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/gpu/gpu_process_host_ui_shim.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 289 matching lines @@
       params.surface_id);
   if (!view)
     return;
 
   delayed_send.Cancel();
 
   static const base::TimeDelta swap_delay = GetSwapDelay();
   if (swap_delay.ToInternalValue())
     base::PlatformThread::Sleep(swap_delay);
 
+  GpuHostMsg_AcceleratedSurfaceBuffersSwapped_Params view_params = params;
+
+  RenderWidgetHostImpl* impl =
+      RenderWidgetHostImpl::From(view->GetRenderWidgetHost());
+  view_params.latency_info.AnnotateComponentsWithProcessId(
+      impl->GetProcess()->GetID());
+
   // View must send ACK message after next composite.
-  view->AcceleratedSurfaceBuffersSwapped(params, host_id_);
+  view->AcceleratedSurfaceBuffersSwapped(view_params, host_id_);
   view->DidReceiveRendererFrame();
 }
 
 void GpuProcessHostUIShim::OnFrameDrawn(const ui::LatencyInfo& latency_info) {
   RenderWidgetHostImpl::CompositorFrameDrawn(latency_info);
 }
 
 void GpuProcessHostUIShim::OnAcceleratedSurfacePostSubBuffer(
     const GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params& params) {
   TRACE_EVENT0("renderer",
       "GpuProcessHostUIShim::OnAcceleratedSurfacePostSubBuffer");
-
   AcceleratedSurfaceMsg_BufferPresented_Params ack_params;
   ack_params.mailbox_name = params.mailbox_name;
   ack_params.sync_point = 0;
    ScopedSendOnIOThread delayed_send(
       host_id_,
       new AcceleratedSurfaceMsg_BufferPresented(params.route_id,
                                                 ack_params));
 
   if (!params.mailbox_name.empty() &&
       params.mailbox_name.length() != GL_MAILBOX_SIZE_CHROMIUM)
     return;
 
   RenderWidgetHostViewPort* view =
       GetRenderWidgetHostViewFromSurfaceID(params.surface_id);
   if (!view)
     return;
 
   delayed_send.Cancel();
 
+  GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params view_params = params;
+
+  RenderWidgetHostImpl* impl = RenderWidgetHostImpl::From(
+      view->GetRenderWidgetHost());
+  view_params.latency_info.AnnotateComponentsWithProcessId(
+      impl->GetProcess()->GetID());
+
   // View must send ACK message after next composite.
-  view->AcceleratedSurfacePostSubBuffer(params, host_id_);
+  view->AcceleratedSurfacePostSubBuffer(view_params, host_id_);
   view->DidReceiveRendererFrame();
 }
 
 void GpuProcessHostUIShim::OnAcceleratedSurfaceSuspend(int32 surface_id) {
   TRACE_EVENT0("renderer",
       "GpuProcessHostUIShim::OnAcceleratedSurfaceSuspend");
 
   RenderWidgetHostViewPort* view =
       GetRenderWidgetHostViewFromSurfaceID(surface_id);
   if (!view)
@@ skipping 11 matching lines @@
   view->AcceleratedSurfaceRelease();
 }
 
 void GpuProcessHostUIShim::OnVideoMemoryUsageStatsReceived(
     const GPUVideoMemoryUsageStats& video_memory_usage_stats) {
   GpuDataManagerImpl::GetInstance()->UpdateVideoMemoryUsageStats(
       video_memory_usage_stats);
 }
 
 }  // namespace content