DevTools: Show GPU utilization bar on timeline

Source/core/inspector/InspectorTimelineAgent.cpp

 /*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
@@ skipping 48 matching lines @@
 #include "wtf/CurrentTime.h"
 
 namespace WebCore {
 
 namespace TimelineAgentState {
 static const char enabled[] = "enabled";
 static const char started[] = "started";
 static const char startedFromProtocol[] = "startedFromProtocol";
 static const char timelineMaxCallStackDepth[] = "timelineMaxCallStackDepth";
 static const char includeDomCounters[] = "includeDomCounters";
+static const char includeGPUEvents[] = "includeGPUEvents";
 static const char bufferEvents[] = "bufferEvents";
 }
 
 // Must be kept in sync with WebInspector.TimelineModel.RecordType in TimelineModel.js
 namespace TimelineRecordType {
 static const char Program[] = "Program";
 
 static const char EventDispatch[] = "EventDispatch";
 static const char BeginFrame[] = "BeginFrame";
 static const char ScheduleStyleRecalculation[] = "ScheduleStyleRecalculation";
@@ skipping 39 matching lines @@
 
 static const char WebSocketCreate[] = "WebSocketCreate";
 static const char WebSocketSendHandshakeRequest[] = "WebSocketSendHandshakeRequest";
 static const char WebSocketReceiveHandshakeResponse[] = "WebSocketReceiveHandshakeResponse";
 static const char WebSocketDestroy[] = "WebSocketDestroy";
 
 // Event names visible to other modules.
 const char DecodeImage[] = "DecodeImage";
 const char Rasterize[] = "Rasterize";
 const char PaintSetup[] = "PaintSetup";
+const char GPUTask[] = "GPUTask";
 }
 
 namespace {
 const char BackendNodeIdGroup[] = "timeline";
 const char InternalEventCategory[] = "instrumentation";
 }
 
 static Frame* frameForExecutionContext(ExecutionContext* context)
 {
     Frame* frame = 0;
@@ skipping 80 matching lines @@
 void InspectorTimelineAgent::enable(ErrorString*)
 {
     m_state->setBoolean(TimelineAgentState::enabled, true);
 }
 
 void InspectorTimelineAgent::disable(ErrorString*)
 {
     m_state->setBoolean(TimelineAgentState::enabled, false);
 }
 
-void InspectorTimelineAgent::start(ErrorString* errorString, const int* maxCallStackDepth, const bool* bufferEvents, const bool* includeDomCounters)
+void InspectorTimelineAgent::start(ErrorString* errorString, const int* maxCallStackDepth, const bool* bufferEvents, const bool* includeDomCounters, const bool* includeGPUEvents)
 {
     if (!m_frontend)
         return;
     m_state->setBoolean(TimelineAgentState::startedFromProtocol, true);
 
     if (isStarted()) {
         *errorString = "Timeline is already started";
         return;
     }
 
     releaseNodeIds();
     if (maxCallStackDepth && *maxCallStackDepth >= 0)
         m_maxCallStackDepth = *maxCallStackDepth;
     else
         m_maxCallStackDepth = 5;
 
     if (bufferEvents && *bufferEvents)
         m_bufferedEvents = TypeBuilder::Array<TypeBuilder::Timeline::TimelineEvent>::create();
 
     m_state->setLong(TimelineAgentState::timelineMaxCallStackDepth, m_maxCallStackDepth);
     m_state->setBoolean(TimelineAgentState::includeDomCounters, includeDomCounters && *includeDomCounters);
+    m_state->setBoolean(TimelineAgentState::includeGPUEvents, includeGPUEvents && *includeGPUEvents);
     m_state->setBoolean(TimelineAgentState::bufferEvents, bufferEvents && *bufferEvents);
 
     innerStart();
     bool fromConsole = false;
     m_frontend->started(&fromConsole);
 }
 
 bool InspectorTimelineAgent::isStarted()
 {
     return m_state->getBoolean(TimelineAgentState::started);
@@ skipping 690 matching lines @@
 double InspectorTimelineAgent::timestamp()
 {
     return m_timeConverter.fromMonotonicallyIncreasingTime(WTF::monotonicallyIncreasingTime());
 }
 
 Page* InspectorTimelineAgent::page()
 {
     return m_pageAgent ? m_pageAgent->page() : 0;
 }
 
+bool InspectorTimelineAgent::isCollectingGPUEvents() const
+{
+    return m_state->getBoolean(TimelineAgentState::includeGPUEvents);
+}
+
 } // namespace WebCore