DevTools: CPU throttling should disable when DevTools are closed.

third_party/WebKit/Source/web/InspectorEmulationAgent.cpp

 // Copyright 2015 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 "web/InspectorEmulationAgent.h"
 
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/Settings.h"
 #include "core/page/Page.h"
@@ skipping 60 matching lines @@
         m_state->doubleProperty(EmulationAgentState::forcedViewportY, 0),
         m_state->doubleProperty(EmulationAgentState::forcedViewportScale, 1));
   }
 }
 
 void InspectorEmulationAgent::disable(ErrorString*) {
   ErrorString error;
   setScriptExecutionDisabled(&error, false);
   setTouchEmulationEnabled(&error, false, protocol::Maybe<String>());
   setEmulatedMedia(&error, String());
+  setCPUThrottlingRate(&error, 1);
   resetViewport(&error);
 }
 
 void InspectorEmulationAgent::forceViewport(ErrorString* error,
                                             double x,
                                             double y,
                                             double scale) {
   if (x < 0 || y < 0) {
     *error = "Coordinates must be non-negative";
     return;
@@ skipping 83 matching lines @@
       WebViewScheduler::VirtualTimePolicy::PAUSE);
   frontend()->virtualTimeBudgetExpired();
 }
 
 DEFINE_TRACE(InspectorEmulationAgent) {
   visitor->trace(m_webLocalFrameImpl);
   InspectorBaseAgent::trace(visitor);
 }
 
 }  // namespace blink