PerformanceMonitor: UMA alert for high browser CPU usage.

chrome/browser/performance_monitor/event.h

 // 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.
 
 #ifndef CHROME_BROWSER_PERFORMANCE_MONITOR_EVENT_H_
 #define CHROME_BROWSER_PERFORMANCE_MONITOR_EVENT_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "base/values.h"
 
+#include "chrome/browser/performance_monitor/event_type.h"
+
 namespace performance_monitor {
 
-// IMPORTANT: To add new events, please
-// - Place the new event above EVENT_NUMBER_OF_EVENTS.
-// - Add a member to the EventKeyChar enum in key_builder.cc.
-// - Add the appropriate messages in generated_resources.grd.
-// - Add the appropriate functions in
-//   chrome/browser/ui/webui/performance_monitor/performance_monitor_l10n.h.
-enum EventType {
-  EVENT_UNDEFINED,
-
-  // Extension-Related events
-  EVENT_EXTENSION_INSTALL,
-  EVENT_EXTENSION_UNINSTALL,
-  EVENT_EXTENSION_UPDATE,
-  EVENT_EXTENSION_ENABLE,
-  EVENT_EXTENSION_DISABLE,
-
-  // Chrome's version has changed.
-  EVENT_CHROME_UPDATE,
-
-  // Renderer-Failure related events; these correspond to the RENDERER_HANG
-  // event, and the two termination statuses ABNORMAL_EXIT and PROCESS_KILLED,
-  // respectively.
-  EVENT_RENDERER_HANG,
-  EVENT_RENDERER_CRASH,
-  EVENT_RENDERER_KILLED,
-
-  // Chrome did not shut down correctly.
-  EVENT_UNCLEAN_EXIT,
-
-  EVENT_NUMBER_OF_EVENTS
-};
-
 const char* EventTypeToString(EventType event_type);
 
 // The wrapper class for the JSON-generated event classes for the performance
 // monitor. This class is used so we can pass around events in a single class,
 // rather than having a variety of different types (since JSON does not
 // currently support inheritance). Since the class will occasionally need to
 // be compared against other events, we construct it with type and time. Other
 // information should not be needed commonly, and is stored in a JSON-generated
 // DictionaryValue.
 class Event {
@@ skipping 19 matching lines @@
   // The time at which the event was recorded.
   base::Time time_;
   // The full JSON-generated value representing the information of the event;
   // these data are described in chrome/browser/performance_monitor/events.json.
   scoped_ptr<base::DictionaryValue> data_;
 };
 
 }  // namespace performance_monitor
 
 #endif  // CHROME_BROWSER_PERFORMANCE_MONITOR_EVENT_H_