Introduce shared_memory_support media target for PPAPI

ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc

Index: ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc b/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc
index c3f480c9e8fa0cf69fc840043d13143356918345..4224a85ed43c8cce9186072e95295ab48aed87ee 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/browser_ppb_audio_rpc_server.cc
@@ -13,6 +13,7 @@
 #include "native_client/src/shared/ppapi_proxy/utility.h"
 #include "native_client/src/trusted/desc/nacl_desc_invalid.h"
 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
+#include "media/audio/shared_memory_util.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/c/ppb_audio_config.h"
 #include "ppapi/c/pp_errors.h"
@@ -88,7 +89,7 @@ void StreamCreatedCallback(void* user_data, int32_t result) {
     return;
   }
   size_t total_shared_memory_size =
-      ppapi_proxy::TotalAudioSharedMemorySizeInBytes(audio_buffer_size);
+      media::TotalSharedMemorySizeInBytes(audio_buffer_size);
   nacl::DescWrapperFactory factory;
   NaClHandle nacl_shm_handle = NaClHandle(shared_memory_handle);
   NaClHandle nacl_sync_handle = NaClHandle(sync_socket_handle);