[PPAPI][MediaStream] Rename AudioFrame to AudioBuffer

ppapi/examples/media_stream_video/media_stream_video.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/c/pp_errors.h"
 #include "ppapi/c/ppb_opengles2.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/dev/var_resource_dev.h"
 #include "ppapi/cpp/graphics_3d.h"
 #include "ppapi/cpp/graphics_3d_client.h"
@@ skipping 324 matching lines @@
   texture_u_ = CreateTexture(width, height, 1);
   texture_v_ = CreateTexture(width, height, 2);
 }
 
 void MediaStreamVideoDemoInstance::OnGetFrame(
     int32_t result, pp::VideoFrame frame) {
   if (result != PP_OK)
     return;
   const char* data = static_cast<const char*>(frame.GetDataBuffer());
   pp::Size size;
-  PP_DCHECK(frame.GetSize(&size));
+  frame.GetSize(&size);
 
   if (size != frame_size_) {
     frame_size_ = size;
     CreateYUVTextures();
   }
 
   int32_t width = frame_size_.width();
   int32_t height = frame_size_.height();
   gles2_if_->ActiveTexture(context_->pp_resource(), GL_TEXTURE0);
   gles2_if_->TexSubImage2D(
@@ skipping 30 matching lines @@
 }
 
 }  // anonymous namespace
 
 namespace pp {
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new MediaStreamVideoModule();
 }
 }  // namespace pp