DevTools: Fix for Page.captureScreenshot

ui/events/latency_info.h

 // Copyright 2013 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 UI_EVENTS_LATENCY_INFO_H_
 #define UI_EVENTS_LATENCY_INFO_H_
 
 #include <utility>
 #include <vector>
 
@@ skipping 26 matching lines @@
   // Timestamp when the UI event is created.
   INPUT_EVENT_LATENCY_UI_COMPONENT,
   // This is special component indicating there is rendering scheduled for
   // the event associated with this LatencyInfo.
   INPUT_EVENT_LATENCY_RENDERING_SCHEDULED_COMPONENT,
   // Timestamp when the touch event is acked.
   INPUT_EVENT_LATENCY_ACKED_TOUCH_COMPONENT,
   // Frame number when a window snapshot was requested. The snapshot
   // is taken when the rendering results actually reach the screen.
   WINDOW_SNAPSHOT_FRAME_NUMBER_COMPONENT,
+  // Frame number for a snapshot requested via
+  // gpuBenchmarking.beginWindowSnapshotPNG

[Vladislav Kaznacheev, 2014/06/16 08:25:27]

Please add a TODO to remove this when this patch hits Stable

[vkuzkokov, 2014/06/16 10:01:24]

Done.

+  WINDOW_OLD_SNAPSHOT_FRAME_NUMBER_COMPONENT,
   // ---------------------------TERMINAL COMPONENT-----------------------------
   // TERMINAL COMPONENT is when we show the latency end in chrome://tracing.
   // Timestamp when the mouse event is acked from renderer and it does not
   // cause any rendering scheduled.
   INPUT_EVENT_LATENCY_TERMINATED_MOUSE_COMPONENT,
   // Timestamp when the touch event is acked from renderer and it does not
   // cause any rendering schedueld and does not generate any gesture event.
   INPUT_EVENT_LATENCY_TERMINATED_TOUCH_COMPONENT,
   // Timestamp when the gesture event is acked from renderer, and it does not
   // cause any rendering schedueld.
@@ skipping 88 matching lines @@
   LatencyMap latency_components;
   // The unique id for matching the ASYNC_BEGIN/END trace event.
   int64 trace_id;
   // Whether a terminal component has been added.
   bool terminated;
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_LATENCY_INFO_H_