[Chromecast] Change DecryptContext Decrypt API

chromecast/media/base/decrypt_context_impl.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROMECAST_MEDIA_BASE_DECRYPT_CONTEXT_IMPL_H_
 #define CHROMECAST_MEDIA_BASE_DECRYPT_CONTEXT_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 13 matching lines @@
 class DecryptContextImpl : public DecryptContext {
  public:
   using DecryptCB = base::Callback<void(bool)>;
 
   explicit DecryptContextImpl(CastKeySystem key_system);
   ~DecryptContextImpl() override;
 
   // DecryptContext implementation:
   CastKeySystem GetKeySystem() override;
   bool Decrypt(CastDecoderBuffer* buffer,
-               std::vector<uint8_t>* output) final;
-
-  // TODO(smcgruer): Replace DecryptContext::Decrypt with this one in next
-  // public api releasing.
-  // Decrypts the given buffer. Returns true/false for success/failure.
-  //
-  // The decrypted data will be of size |buffer.data_size()| and there must be
-  // enough space in |output| to store that data.
-  //
-  // If non-zero, |data_offset| specifies an offset to be applied to |output|
-  // before the decrypted data is written.
-  virtual bool Decrypt(CastDecoderBuffer* buffer,
-                       uint8_t* output,
-                       size_t data_offset);
+               uint8_t* output,
+               size_t data_offset) override;
 
   // Similar as the above one. Decryption success or not will be returned in
   // |decrypt_cb|. |decrypt_cb| will be called on caller's thread.
   virtual void DecryptAsync(CastDecoderBuffer* buffer,
                             uint8_t* output,
                             size_t data_offset,
                             const DecryptCB& decrypt_cb);
 
   // Returns whether the data can be decrypted into user memory.
   // If the key system doesn't support secure output or the app explicitly
   // requires non secure output, it should return true;
   // If the key system doesn't allow clear content to be decrypted into user
   // memory, it should return false.
   virtual bool CanDecryptToBuffer() const;
 
  private:
   CastKeySystem key_system_;
 
   // TODO(smcgruer): Restore macro usage next public API release.
   // DISALLOW_COPY_AND_ASSIGN(DecryptContextImpl);
   DecryptContextImpl(const DecryptContextImpl&) = delete;
   void operator=(const DecryptContextImpl&) = delete;
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_BASE_DECRYPT_CONTEXT_IMPL_H_