Attempt to fix FYI bots.
The FYI bots went red after https://webrtc-codereview.appspot.com/32179004/ landed.

TBR=henrika@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36369004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7853 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_device/include/audio_device.h b/webrtc/modules/audio_device/include/audio_device.h
index 736ed35..6c45fa7 100644
--- a/webrtc/modules/audio_device/include/audio_device.h
+++ b/webrtc/modules/audio_device/include/audio_device.h
@@ -183,7 +183,8 @@
   virtual int32_t GetLoudspeakerStatus(bool* enabled) const = 0;
 
   // Only supported on Android.
-  virtual bool BuiltInAECIsAvailable() const = 0;
+  // TODO(henrika): Make pure virtual after updating Chromium.
+  virtual bool BuiltInAECIsAvailable() const { return false; }
 
   // Enables the built-in AEC. Only supported on Windows and Android.
   //
@@ -193,7 +194,8 @@
   // 2. StopRecording() should be called before StopPlayout().
   //    The reverse order may cause garbage audio to be rendered or the
   //    capture side to halt until StopRecording() is called.
-  virtual int32_t EnableBuiltInAEC(bool enable) = 0;
+  // TODO(henrika): Make pure virtual after updating Chromium.
+  virtual int32_t EnableBuiltInAEC(bool enable) { return -1; }
 
   // Don't use.
   virtual bool BuiltInAECIsEnabled() const { return false; }