Remove gpu side LatencyInfo merging

content/browser/renderer_host/compositing_iosurface_mac.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_MAC_H_
 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_MAC_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 35 matching lines @@
 class CompositingIOSurfaceMac {
  public:
   // Returns NULL if IOSurface support is missing or GL APIs fail.
   static CompositingIOSurfaceMac* Create();
   ~CompositingIOSurfaceMac();
 
   // Set IOSurface that will be drawn on the next NSView drawRect.
   bool SetIOSurface(uint64 io_surface_handle,
                     const gfx::Size& size,
                     float scale_factor,
-                    const ui::LatencyInfo& latency_info);
+                    const std::vector<ui::LatencyInfo>& latency_info);
 
   // Get the CGL renderer ID currently associated with this context.
   int GetRendererID();
 
   // Blit the IOSurface to the rectangle specified by |window_rect| in DIPs,
   // with the origin in the lower left corner. If the window rect's size is
   // larger than the IOSurface, the remaining right and bottom edges will be
   // white. |window_scale_factor| is 1 in normal views, 2 in HiDPI views.
   // |frame_subscriber| listens to this draw event and provides output buffer
   // for copying this frame into.
@@ skipping 271 matching lines @@
   base::Lock lock_;
 
   // Vsync timing data.
   base::TimeTicks vsync_timebase_;
   uint32 vsync_interval_numerator_;
   uint32 vsync_interval_denominator_;
 
   // Error saved by GetAndSaveGLError
   GLint gl_error_;
 
-  ui::LatencyInfo latency_info_;
+  std::vector<ui::LatencyInfo> latency_info_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITING_IOSURFACE_MAC_H_