[PowerProfiler] Power profiler service keeps running even after devtools frontend has been closed.

content/browser/devtools/render_view_devtools_agent_host.cc

 // 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/devtools/render_view_devtools_agent_host.h"
 
 #include "base/basictypes.h"
 #include "base/lazy_instance.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/devtools/devtools_manager_impl.h"
@@ skipping 244 matching lines @@
   }
 #endif
 }
 
 void RenderViewDevToolsAgentHost::OnClientDetached() {
 #if defined(OS_ANDROID)
   power_save_blocker_.reset();
 #endif
   overrides_handler_->OnClientDetached();
   tracing_handler_->OnClientDetached();
+  power_handler_->OnClientDetached();
   ClientDetachedFromRenderer();
 }
 
 void RenderViewDevToolsAgentHost::ClientDetachedFromRenderer() {
   if (!render_view_host_)
     return;
 
   InnerClientDetachedFromRenderer();
 
   // TODO(kaznacheev): Move this call back to DevToolsManagerImpl when
@@ skipping 191 matching lines @@
 
 void RenderViewDevToolsAgentHost::OnDispatchOnInspectorFrontend(
     const std::string& message) {
   if (!render_view_host_)
     return;
   DevToolsManagerImpl::GetInstance()->DispatchOnInspectorFrontend(
       this, message);
 }
 
 }  // namespace content