Added option to specify a maximum file size when recording an AEC dump.

webrtc/modules/audio_processing/include/audio_processing.h

Index: webrtc/modules/audio_processing/include/audio_processing.h
diff --git a/webrtc/modules/audio_processing/include/audio_processing.h b/webrtc/modules/audio_processing/include/audio_processing.h
index 318b2f89533652b6fd1ad896d269f78deb0d004d..605460376c9d66c95c5428b0a64dd177fbd795d7 100644
--- a/webrtc/modules/audio_processing/include/audio_processing.h
+++ b/webrtc/modules/audio_processing/include/audio_processing.h
@@ -389,13 +389,19 @@ class AudioProcessing {
   // Starts recording debugging information to a file specified by |filename|,
   // a NULL-terminated string. If there is an ongoing recording, the old file
   // will be closed, and recording will continue in the newly specified file.
-  // An already existing file will be overwritten without warning.
+  // An already existing file will be overwritten without warning. A maximum
+  // file size (in bytes) for the log can be specified. The logging is stopped
+  // once the limit has been reached. If max_log_size_bytes is set to a value
+  // <= 0, no limit will be used.
   static const size_t kMaxFilenameSize = 1024;
-  virtual int StartDebugRecording(const char filename[kMaxFilenameSize]) = 0;
+  virtual int StartDebugRecording(const char filename[kMaxFilenameSize],
+                                  int64_t max_log_size_bytes) = 0;
 
   // Same as above but uses an existing file handle. Takes ownership
-  // of |handle| and closes it at StopDebugRecording().
-  virtual int StartDebugRecording(FILE* handle) = 0;
+  // of |handle| and closes it at StopDebugRecording(). A maximum file size
+  // (in bytes) for the log can be specified. The logging is stopped once the
+  // limit has been reached.

[Andrew MacDonald, 2015/11/24 17:28:59]

nit: Just refer to the comments above rather than repeating.

[ivoc, 2015/12/01 15:17:16]

Done.

+  virtual int StartDebugRecording(FILE* handle, int64_t max_log_size_bytes) = 0;
 
   // Same as above but uses an existing PlatformFile handle. Takes ownership
   // of |handle| and closes it at StopDebugRecording().