Add video decoding support in the CDM interface.

webkit/media/crypto/ppapi/clear_key_cdm.cc

Index: webkit/media/crypto/ppapi/clear_key_cdm.cc
diff --git a/webkit/media/crypto/ppapi/clear_key_cdm.cc b/webkit/media/crypto/ppapi/clear_key_cdm.cc
index 835d06258a28020d9ae7612b75ed15c63a2293a9..0caf8d058a7779eb04a9b23b95d47bf7fa6e0a41 100644
--- a/webkit/media/crypto/ppapi/clear_key_cdm.cc
+++ b/webkit/media/crypto/ppapi/clear_key_cdm.cc
@@ -216,4 +216,26 @@ cdm::Status ClearKeyCdm::Decrypt(
   return cdm::kSuccess;
 }
 
+cdm::Status ClearKeyCdm::InitializeVideoDecoder(
+    const cdm::VideoDeocderConfig& video_decoder_config) {
+  return cdm::kErrorUnknown;
+}
+
+cdm::Status ClearKeyCdm::DecryptAndDecodeVideo(
+    const cdm::InputBuffer& encrypted_buffer,
+    cdm::VideoFrame* video_frame) {
+  NOTIMPLEMENTED();
+  return cdm::kErrorUnknown;
+}
+
+cdm::Status ClearKeyCdm::ResetVideoDecoder() {
+  NOTIMPLEMENTED();
+  return cdm::kErrorUnknown;
+}
+
+cdm::Status ClearKeyCdm::StopVideoDecoder() {
+  NOTIMPLEMENTED();
+  return cdm::kErrorUnknown;
+}
+
 }  // namespace webkit_media