gpu: Add calling convention for win32

mojo/gles2/gles2_impl.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 "mojo/public/c/gles2/gles2.h"
 
 #include "base/lazy_instance.h"
 #include "base/threading/thread_local.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/gles2_interface.h"
@@ skipping 58 matching lines @@
 
 void* MojoGLES2GetGLES2Interface(MojoGLES2Context context) {
   return static_cast<GLES2Context*>(context)->interface();
 }
 
 void* MojoGLES2GetContextSupport(MojoGLES2Context context) {
   return static_cast<GLES2Context*>(context)->context_support();
 }
 
 #define VISIT_GL_CALL(Function, ReturnType, PARAMETERS, ARGUMENTS) \
-  ReturnType gl##Function PARAMETERS {                             \
+  ReturnType GL_APIENTRY gl##Function PARAMETERS {                 \
     DCHECK(g_gpu_interface.Get().Get());                           \
     return g_gpu_interface.Get().Get()->Function ARGUMENTS;        \
   }
 #include "mojo/public/c/gles2/gles2_call_visitor_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_copy_texture_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_image_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_miscellaneous_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_pixel_transfer_buffer_object_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_sub_image_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_sync_point_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_chromium_texture_mailbox_autogen.h"
 #include "mojo/public/c/gles2/gles2_call_visitor_occlusion_query_ext_autogen.h"
 #undef VISIT_GL_CALL
 
 }  // extern "C"