Exclude host-side code from the NaCl IRT proxy build.

ppapi/proxy/ppb_graphics_3d_proxy.cc

Index: ppapi/proxy/ppb_graphics_3d_proxy.cc
===================================================================
--- ppapi/proxy/ppb_graphics_3d_proxy.cc	(revision 161132)
+++ ppapi/proxy/ppb_graphics_3d_proxy.cc	(working copy)
@@ -192,6 +192,7 @@
 bool PPB_Graphics3D_Proxy::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(PPB_Graphics3D_Proxy, msg)
+#if !defined(OS_NACL)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBGraphics3D_Create,
                         OnMsgCreate)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBGraphics3D_InitCommandBuffer,
@@ -212,7 +213,7 @@
                         OnMsgGetTransferBuffer)
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBGraphics3D_SwapBuffers,
                         OnMsgSwapBuffers)
-
+#endif  // !defined(OS_NACL)
     IPC_MESSAGE_HANDLER(PpapiMsg_PPBGraphics3D_SwapBuffersACK,
                         OnMsgSwapBuffersACK)
     IPC_MESSAGE_UNHANDLED(handled = false)
@@ -222,6 +223,7 @@
   return handled;
 }
 
+#if !defined(OS_NACL)
 void PPB_Graphics3D_Proxy::OnMsgCreate(PP_Instance instance,
                                        HostResource share_context,
                                        const std::vector<int32_t>& attribs,
@@ -338,6 +340,14 @@
     enter.SetResult(enter.object()->SwapBuffers(enter.callback()));
 }
 
+void PPB_Graphics3D_Proxy::SendSwapBuffersACKToPlugin(
+    int32_t result,
+    const HostResource& context) {
+  dispatcher()->Send(new PpapiMsg_PPBGraphics3D_SwapBuffersACK(
+      API_ID_PPB_GRAPHICS_3D, context, result));
+}
+#endif  // !defined(OS_NACL)
+
 void PPB_Graphics3D_Proxy::OnMsgSwapBuffersACK(const HostResource& resource,
                                               int32_t pp_error) {
   EnterPluginFromHostResource<PPB_Graphics3D_API> enter(resource);
@@ -345,13 +355,6 @@
     static_cast<Graphics3D*>(enter.object())->SwapBuffersACK(pp_error);
 }
 
-void PPB_Graphics3D_Proxy::SendSwapBuffersACKToPlugin(
-    int32_t result,
-    const HostResource& context) {
-  dispatcher()->Send(new PpapiMsg_PPBGraphics3D_SwapBuffersACK(
-      API_ID_PPB_GRAPHICS_3D, context, result));
-}
-
 }  // namespace proxy
 }  // namespace ppapi