Convert video capture pipline to base::TimeTicks

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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_view_mac.h"
 
 #import <objc/runtime.h>
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/basictypes.h"
@@ skipping 1276 matching lines @@
     float surface_scale_factor,
     const ui::LatencyInfo& latency_info) {
   if (render_widget_host_->is_hidden())
     return;
 
   NSWindow* window = [cocoa_view_ window];
   if (window_number() <= 0) {
     // There is no window to present so capturing during present won't work.
     // We check if frame subscriber wants this frame and capture manually.
     if (compositing_iosurface_ && frame_subscriber_) {
-      const base::Time present_time = base::Time::Now();
+      const base::TimeTicks present_time = base::TimeTicks::Now();
       scoped_refptr<media::VideoFrame> frame;
       RenderWidgetHostViewFrameSubscriber::DeliverFrameCallback callback;
       if (frame_subscriber_->ShouldCaptureFrame(present_time,
                                                 &frame, &callback)) {
         compositing_iosurface_->SetIOSurface(
             surface_handle, size, surface_scale_factor, latency_info);
         compositing_iosurface_->CopyToVideoFrame(
             gfx::Rect(size), frame,
             base::Bind(callback, present_time));
         return;
@@ skipping 2675 matching lines @@
   return YES;
 }
 
 - (BOOL)isOpaque {
   if (renderWidgetHostView_->use_core_animation_)
     return YES;
   return [super isOpaque];
 }
 
 @end