Fixed the android build by making the interface pure virtual.

TBR=asapersson@webrtc.org, bjornv@webrtc.org,

Review URL: https://webrtc-codereview.appspot.com/24789004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7338 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_processing/include/mock_audio_processing.h

@@ -239,6 +239,8 @@ class MockAudioProcessing : public AudioProcessing {
       int(const char filename[kMaxFilenameSize]));
   MOCK_METHOD1(StartDebugRecording,
       int(FILE* handle));
+  MOCK_METHOD1(StartDebugRecording,
+      int(rtc::PlatformFile handle));
   MOCK_METHOD0(StopDebugRecording,
       int());
   virtual MockEchoCancellation* echo_cancellation() const {