Added coordinates information to InputLatency

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>
 
 #include "base/basictypes.h"
 #include "base/containers/small_map.h"
 #include "base/time/time.h"
 #include "ui/events/events_base_export.h"
 
 namespace ui {
 
+const size_t kMaxLatencyCoordinates = 12;

[Sami, 2014/09/04 19:10:43]

Delete.

[cvicentiu, 2014/09/05 17:19:57]

Done.

+
 enum LatencyComponentType {
   // ---------------------------BEGIN COMPONENT-------------------------------
   // BEGIN COMPONENT is when we show the latency begin in chrome://tracing.
   // Timestamp when the input event is sent from RenderWidgetHost to renderer.
   INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT,
   // Timestamp when the input event is received in plugin.
   INPUT_EVENT_LATENCY_BEGIN_PLUGIN_COMPONENT,
   // Timestamp when a scroll update for the main thread is begun.
   INPUT_EVENT_LATENCY_BEGIN_SCROLL_UPDATE_MAIN_COMPONENT,
   // ---------------------------NORMAL COMPONENT-------------------------------
@@ skipping 60 matching lines @@
     // Nondecreasing number that can be used to determine what events happened
     // in the component at the time this struct was sent on to the next
     // component.
     int64 sequence_number;
     // Average time of events that happened in this component.
     base::TimeTicks event_time;
     // Count of events that happened in this component
     uint32 event_count;
   };
 
+  typedef std::vector<std::pair<int32, int32> > LatencyScreenCoordinates;

[Sami, 2014/09/04 19:10:43]

float

InputCoordinates

gfx::PointF instead of pair.

[cvicentiu, 2014/09/05 17:19:56]

Done.

+
   // Empirically determined constant based on a typical scroll sequence.
   enum { kTypicalMaxComponentsPerLatencyInfo = 6 };
 
   // Map a Latency Component (with a component-specific int64 id) to a
   // component info.
   typedef base::SmallMap<
       std::map<std::pair<LatencyComponentType, int64>, LatencyComponent>,
       kTypicalMaxComponentsPerLatencyInfo> LatencyMap;
 
   LatencyInfo();
@@ skipping 38 matching lines @@
                    LatencyComponent* output) const;
 
   void RemoveLatency(LatencyComponentType type);
 
   void Clear();
 
   // Records the |event_type| in trace buffer as TRACE_EVENT_ASYNC_STEP.
   void TraceEventType(const char* event_type);
 
   LatencyMap latency_components;
+
+  LatencyScreenCoordinates coordinates;

[Sami, 2014/09/04 19:10:43]

InputCoordinates input_coordinates, add a comment saying these are screen
coordinates.

[cvicentiu, 2014/09/05 17:19:56]

Done.

+
   // 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_