Cast: Refactoring Cast API's

media/cast/cast_defines.h

Index: media/cast/cast_defines.h
diff --git a/media/cast/cast_defines.h b/media/cast/cast_defines.h
index fbae7408f22f27cb79f6fb5bf408e3e9535fcce5..568a53c2ce2d44b3a1c54ded15f31fe6292df82e 100644
--- a/media/cast/cast_defines.h
+++ b/media/cast/cast_defines.h
@@ -29,6 +29,20 @@ const int kStartRttMs = 20;
 const int64 kCastMessageUpdateIntervalMs = 33;
 const int64 kNackRepeatIntervalMs = 30;
 
+enum CastInitializationStatus {
+  STATUS_AUDIO_UNINITIALIZED,
+  STATUS_VIDEO_UNINITIALIZED,
+  STATUS_AUDIO_INITIALIZED,
+  STATUS_VIDEO_INITIALIZED,
+  STATUS_INVALID_CAST_ENVIRONMENT,
+  STATUS_INVALID_CRYPTO_CONFIGURATION,
+  STATUS_UNSUPPORTED_AUDIO_CODEC,
+  STATUS_INVALID_AUDIO_CONFIGURATION,
+  STATUS_INVALID_VIDEO_CONFIGURATION,
+  STATUS_GPU_ACCELERATION_NOT_SUPPORTED,
+  STATUS_GPU_ACCELERATION_ERROR,
+};
+
 enum DefaultSettings {
   kDefaultAudioEncoderBitrate = 0,  // This means "auto," and may mean VBR.
   kDefaultAudioSamplingRate = 48000,