[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer

ppapi/proxy/audio_frame_resource.cc

 // 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.
 
 #include "ppapi/proxy/audio_frame_resource.h"
 
 #include "base/logging.h"
 #include "ppapi/c/pp_bool.h"
+#include "ppapi/shared_impl/media_stream_buffer.h"
 #include "ppapi/shared_impl/var.h"
 
 namespace ppapi {
 namespace proxy {
 
 AudioFrameResource::AudioFrameResource(PP_Instance instance,
                                        int32_t index,
-                                       MediaStreamFrame* frame)
+                                       MediaStreamBuffer* buffer)
     : Resource(OBJECT_IS_PROXY, instance),
       index_(index),
-      frame_(frame) {
-  DCHECK_EQ(frame_->header.type, MediaStreamFrame::TYPE_AUDIO);
+      buffer_(buffer) {
+  DCHECK_EQ(buffer_->header.type, MediaStreamBuffer::TYPE_AUDIO);
 }
 
 AudioFrameResource::~AudioFrameResource() {
-  CHECK(!frame_) << "An unused (or unrecycled) frame is destroyed.";
+  CHECK(!buffer_) << "An unused (or unrecycled) frame is destroyed.";
 }
 
 thunk::PPB_AudioFrame_API* AudioFrameResource::AsPPB_AudioFrame_API() {
   return this;
 }
 
 PP_TimeDelta AudioFrameResource::GetTimestamp() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return 0.0;
   }
-  return frame_->audio.timestamp;
+  return buffer_->audio.timestamp;
 }
 
 void AudioFrameResource::SetTimestamp(PP_TimeDelta timestamp) {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return;
   }
-  frame_->audio.timestamp = timestamp;
+  buffer_->audio.timestamp = timestamp;
 }
 
 PP_AudioFrame_SampleRate AudioFrameResource::GetSampleRate() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return PP_AUDIOFRAME_SAMPLERATE_UNKNOWN;
   }
-  return frame_->audio.sample_rate;
+  return buffer_->audio.sample_rate;
 }
 
 PP_AudioFrame_SampleSize AudioFrameResource::GetSampleSize() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return PP_AUDIOFRAME_SAMPLESIZE_UNKNOWN;
   }
   return PP_AUDIOFRAME_SAMPLESIZE_16_BITS;
 }
 
 uint32_t AudioFrameResource::GetNumberOfChannels() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return 0;
   }
-  return frame_->audio.number_of_channels;
+  return buffer_->audio.number_of_channels;
 }
 
 uint32_t AudioFrameResource::GetNumberOfSamples() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return 0;
   }
-  return frame_->audio.number_of_samples;
+  return buffer_->audio.number_of_samples;
 }
 
 void* AudioFrameResource::GetDataBuffer() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return NULL;
   }
-  return frame_->audio.data;
+  return buffer_->audio.data;
 }
 
 uint32_t AudioFrameResource::GetDataBufferSize() {
-  if (!frame_) {
-    VLOG(1) << "Frame is invalid";
+  if (!buffer_) {
+    VLOG(1) << "Buffer is invalid";
     return 0;
   }
-  return frame_->audio.data_size;
+  return buffer_->audio.data_size;
 }
 
-MediaStreamFrame* AudioFrameResource::GetFrameBuffer() {
-  return frame_;
+MediaStreamBuffer* AudioFrameResource::GetBuffer() {
+  return buffer_;
 }
 
-int32_t AudioFrameResource::GetFrameBufferIndex() {
+int32_t AudioFrameResource::GetBufferIndex() {
   return index_;
 }
 
 void AudioFrameResource::Invalidate() {
-  DCHECK(frame_);
+  DCHECK(buffer_);
   DCHECK_GE(index_, 0);
-  frame_ = NULL;
+  buffer_ = NULL;
   index_ = -1;
 }
 
 }  // namespace proxy
 }  // namespace ppapi