MSE: Increase log visibility when unfragmented MP4 causes parse failure

media/formats/mp4/rcheck.h

 // Copyright 2014 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_FORMATS_MP4_RCHECK_H_
 #define MEDIA_FORMATS_MP4_RCHECK_H_
 
 #include "base/logging.h"
+#include "media/base/media_log.h"
 
-#define RCHECK(x) \
-    do { \
-      if (!(x)) { \
-        DLOG(ERROR) << "Failure while parsing MP4: " << #x; \
-        return false; \
-      } \
-    } while (0)
+#define RCHECK_MEDIA_LOGGED(condition, log_cb, msg)                 \
+  do {                                                              \
+    if (!(condition)) {                                             \
+      DLOG(ERROR) << "Failure while parsing MP4: " #condition;      \

[DaleCurtis, 2015/05/15 18:45:37]

<< before # ?

+      MEDIA_LOG(ERROR, log_cb) << "Failure parsing MP4: " << (msg); \
+      return false;                                                 \
+    }                                                               \
+  } while (0)
+
+// TODO(wolenetz,chcunningham): Where appropriate, replace usage of this macro
+// in favor of RCHECK_MEDIA_LOGGED. See https://crbug.com/487410.
+#define RCHECK(condition)                                      \
+  do {                                                         \
+    if (!(condition)) {                                        \
+      DLOG(ERROR) << "Failure while parsing MP4: " #condition; \

[DaleCurtis, 2015/05/15 18:45:37]

Ditto

+      return false;                                            \
+    }                                                          \
+  } while (0)
 
 #endif  // MEDIA_FORMATS_MP4_RCHECK_H_