Convert to new enter method

ppapi/thunk/ppb_graphics_3d_thunk.cc

Index: ppapi/thunk/ppb_graphics_3d_thunk.cc
diff --git a/ppapi/thunk/ppb_graphics_3d_thunk.cc b/ppapi/thunk/ppb_graphics_3d_thunk.cc
index 490561b48639921bae64a513c68253df9bfd46a6..0aeeb27ee071351489c1d9276d3eeecc19fa96b5 100644
--- a/ppapi/thunk/ppb_graphics_3d_thunk.cc
+++ b/ppapi/thunk/ppb_graphics_3d_thunk.cc
@@ -4,7 +4,6 @@
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_errors.h"
-#include "ppapi/thunk/common.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/ppb_graphics_3d_api.h"
@@ -27,7 +26,7 @@ int32_t GetAttribMaxValue(PP_Resource instance,
 PP_Resource Create(PP_Instance instance,
                    PP_Resource share_context,
                    const int32_t* attrib_list) {
-  EnterFunction<ResourceCreationAPI> enter(instance, true);
+  EnterResourceCreation enter(instance);
   if (enter.failed())
     return 0;
   return enter.functions()->CreateGraphics3D(
@@ -42,38 +41,36 @@ PP_Bool IsGraphics3D(PP_Resource resource) {
 int32_t GetAttribs(PP_Resource graphics_3d, int32_t* attrib_list) {
   EnterGraphics3D enter(graphics_3d, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
+    return enter.retval();
   return enter.object()->GetAttribs(attrib_list);
 }
 
 int32_t SetAttribs(PP_Resource graphics_3d, int32_t* attrib_list) {
   EnterGraphics3D enter(graphics_3d, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
+    return enter.retval();
   return enter.object()->SetAttribs(attrib_list);
 }
 
 int32_t GetError(PP_Resource graphics_3d) {
   EnterGraphics3D enter(graphics_3d, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-
+    return enter.retval();
   return enter.object()->GetError();
 }
 
 int32_t ResizeBuffers(PP_Resource graphics_3d, int32_t width, int32_t height) {
   EnterGraphics3D enter(graphics_3d, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
+    return enter.retval();
   return enter.object()->ResizeBuffers(width, height);
 }
 
 int32_t SwapBuffers(PP_Resource graphics_3d, PP_CompletionCallback callback) {
-  EnterGraphics3D enter(graphics_3d, true);
+  EnterGraphics3D enter(graphics_3d, callback, true);
   if (enter.failed())
-    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
-  int32_t result = enter.object()->SwapBuffers(callback);
-  return MayForceCallback(callback, result);
+    return enter.retval();
+  return enter.SetResult(enter.object()->SwapBuffers(callback));
 }
 
 const PPB_Graphics3D g_ppb_graphics_3d_thunk = {