Adding APM configuration in AEC dump.

webrtc/modules/audio_processing/audio_processing_impl.h

Index: webrtc/modules/audio_processing/audio_processing_impl.h
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.h b/webrtc/modules/audio_processing/audio_processing_impl.h
index 15c6f7572f9a6e5a8fedebd2308676b1b166be43..d5e58c147a66c5ccf35f5f435f97e290cc3e4d30 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.h
+++ b/webrtc/modules/audio_processing/audio_processing_impl.h
@@ -19,6 +19,15 @@
 #include "webrtc/base/thread_annotations.h"
 #include "webrtc/modules/audio_processing/include/audio_processing.h"
 
+#ifdef WEBRTC_AUDIOPROC_DEBUG_DUMP
+// Files generated at build-time by the protobuf compiler.
+#ifdef WEBRTC_ANDROID_PLATFORM_BUILD
+#include "external/webrtc/webrtc/modules/audio_processing/debug.pb.h"
+#else
+#include "webrtc/audio_processing/debug.pb.h"
+#endif
+#endif  // WEBRTC_AUDIOPROC_DEBUG_DUMP
+
 namespace webrtc {
 
 class AgcManagerDirect;
@@ -167,9 +176,15 @@ class AudioProcessingImpl : public AudioProcessing {
   // out into a separate class with an "enabled" and "disabled" implementation.
   int WriteMessageToDebugFile();
   int WriteInitMessage();
+  int WriteConfigMessage();
+
+  // Updates |config_| and returns true if any change is made.
+  bool UpdateCurrentConfig();
+
   rtc::scoped_ptr<FileWrapper> debug_file_;
   rtc::scoped_ptr<audioproc::Event> event_msg_;  // Protobuf message.
   std::string event_str_;  // Memory for protobuf serialization.
+  rtc::scoped_ptr<audioproc::Config> config_;
 #endif
 
   // Format of processing streams at input/output call sites.