Rename nacl::RefCounted to nacl::RefCountedThreadSafe

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

Index: ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
diff --git a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
index 297918d2915793a573518bd5358a12e45b3d2bfb..2bff66d7eec71113258cc00a6d3c85416e8d0d3c 100644
--- a/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
+++ b/ppapi/native_client/src/shared/ppapi_proxy/plugin_ppb_image_data.cc
@@ -141,14 +141,6 @@ PluginImageData::PluginImageData()
   memset(&desc_, 0, sizeof(desc_));
 }
 
-PluginImageData::~PluginImageData() {
-  Unmap();
-  if (shm_fd_ != -1) {
-    close(shm_fd_);
-    shm_fd_ = -1;
-  }
-}
-
 bool PluginImageData::InitFromBrowserResource(PP_Resource resource) {
   nacl_abi_size_t desc_size = static_cast<nacl_abi_size_t>(sizeof(desc_));
   int32_t success = PP_FALSE;
@@ -185,4 +177,12 @@ void PluginImageData::Unmap() {
   }
 }
 
+PluginImageData::~PluginImageData() {
+  Unmap();
+  if (shm_fd_ != -1) {
+    close(shm_fd_);
+    shm_fd_ = -1;
+  }
+}
+
 }  // namespace ppapi_proxy