Add compositor support for the LatencyInfo.

cc/output/gl_renderer.cc

 // Copyright 2010 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 "cc/output/gl_renderer.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 1836 matching lines @@
   SetShaderOpacity(1, program->fragment_shader().alpha_location());
   DrawQuadGeometry(
       frame, draw_matrix, rect, program->vertex_shader().matrix_location());
 }
 
 void GLRenderer::Finish() {
   TRACE_EVENT0("cc", "GLRenderer::finish");
   context_->finish();
 }
 
-bool GLRenderer::SwapBuffers() {
+bool GLRenderer::SwapBuffers(const LatencyInfo& latency_info) {
   DCHECK(visible_);
   DCHECK(!is_backbuffer_discarded_);
 
   TRACE_EVENT0("cc", "GLRenderer::SwapBuffers");
   // We're done! Time to swapbuffers!
 
   if (capabilities_.using_partial_swap && client_->AllowPartialSwap()) {
     // If supported, we can save significant bandwidth by only swapping the
     // damaged/scissored region (clamped to the viewport)
     swap_buffer_rect_.Intersect(gfx::Rect(ViewportSize()));
     int flipped_y_pos_of_rect_bottom =
         ViewportHeight() - swap_buffer_rect_.y() - swap_buffer_rect_.height();
     output_surface_->PostSubBuffer(gfx::Rect(swap_buffer_rect_.x(),
                                              flipped_y_pos_of_rect_bottom,
                                              swap_buffer_rect_.width(),
                                              swap_buffer_rect_.height()),
-                                   LatencyInfo());
+                                   latency_info);
   } else {
-    output_surface_->SwapBuffers(LatencyInfo());
+    output_surface_->SwapBuffers(latency_info);
   }
 
   swap_buffer_rect_ = gfx::Rect();
 
   // We don't have real fences, so we mark read fences as passed
   // assuming a double-buffered GPU pipeline. A texture can be
   // written to after one full frame has past since it was last read.
   if (last_swap_fence_)
     static_cast<SimpleSwapFence*>(last_swap_fence_.get())->SetHasPassed();
   last_swap_fence_ = resource_provider_->GetReadLockFence();
@@ skipping 697 matching lines @@
     resource_provider_->DeleteResource(on_demand_tile_raster_resource_id_);
 
   ReleaseRenderPassTextures();
 }
 
 bool GLRenderer::IsContextLost() {
   return (context_->getGraphicsResetStatusARB() != GL_NO_ERROR);
 }
 
 }  // namespace cc