media: Plumb MediaLog to MojoVideoDecoderService.

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 83 matching lines @@
       BufferingState state);
 
   // Report a log message at the specified log level.
   void AddLogEvent(MediaLogLevel level, const std::string& message);
 
   // Report a property change without an accompanying event.
   void SetStringProperty(const std::string& key, const std::string& value);
   void SetDoubleProperty(const std::string& key, double value);
   void SetBooleanProperty(const std::string& key, bool value);
 
+  // Getter for |id_|. Used by MojoMediaLogService to construct MediaLogEvents
+  // to log into this MediaLog.
+  int32_t id() const { return id_; }
+
  private:
   // A unique (to this process) id for this MediaLog.
   int32_t id_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaLog);
 };
 
 // Helper class to make it easier to use MediaLog like DVLOG().
 class MEDIA_EXPORT LogHelper {
  public:
@@ skipping 29 matching lines @@
 #define LIMITED_MEDIA_LOG(level, media_log, count, max)                       \
   LAZY_STREAM(MEDIA_LOG(level, media_log),                                    \
               (count) < (max) && ((count)++ || true))                         \
       << (((count) == (max)) ? "(Log limit reached. Further similar entries " \
                                "may be suppressed): "                         \
                              : "")
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_MEDIA_LOG_H_