Add PipelineStatus UMA logging to media_internals

media/base/media_log.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 MEDIA_BASE_MEDIA_LOG_H_
 #define MEDIA_BASE_MEDIA_LOG_H_
 
 #include <sstream>
 #include <string>
 
@@ skipping 22 matching lines @@
   LogCB log_cb_;
   std::stringstream stream_;
 };
 
 #define MEDIA_LOG(log_cb) LogHelper(log_cb).stream()
 
 class MEDIA_EXPORT MediaLog : public base::RefCountedThreadSafe<MediaLog> {
  public:
   // Convert various enums to strings.
   static const char* EventTypeToString(MediaLogEvent::Type type);
-  static const char* PipelineStatusToString(PipelineStatus);
-
+  static const char* PipelineStatusToString(PipelineStatus status);
+  static bool StringToPipelineStatus(const std::string status,
+                                     PipelineStatus& out_status);
   MediaLog();
 
   // Add an event to this log. Overriden by inheritors to actually do something
   // with it.
   virtual void AddEvent(scoped_ptr<MediaLogEvent> event);
 
   // Helper methods to create events and their parameters.
   scoped_ptr<MediaLogEvent> CreateEvent(MediaLogEvent::Type type);
   scoped_ptr<MediaLogEvent> CreateBooleanEvent(
       MediaLogEvent::Type type, const char* property, bool value);
@@ skipping 27 matching lines @@
  private:
   // A unique (to this process) id for this MediaLog.
   int32 id_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaLog);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_MEDIA_LOG_H_