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

talk/media/base/fakemediaengine.h

Index: talk/media/base/fakemediaengine.h
diff --git a/talk/media/base/fakemediaengine.h b/talk/media/base/fakemediaengine.h
index 5a4f46a20464c02ba14acc766fe923f44f3d35c1..f4e5658800deb2508735a47f86d8d2df6a0298c8 100644
--- a/talk/media/base/fakemediaengine.h
+++ b/talk/media/base/fakemediaengine.h
@@ -785,6 +785,10 @@ class FakeVoiceEngine : public FakeBaseEngine {
 
   bool StartAecDump(rtc::PlatformFile file) { return false; }
 
+  bool StartAecDump(rtc::PlatformFile file, int max_size_bytes) {
+    return false;
+  }
+
   bool StartRtcEventLog(rtc::PlatformFile file) { return false; }
 
   void StopRtcEventLog() {}