Pepper: Reduce includes in generated thunks.

ppapi/thunk/ppb_url_loader_trusted_thunk.cc

Index: ppapi/thunk/ppb_url_loader_trusted_thunk.cc
diff --git a/ppapi/thunk/ppb_url_loader_trusted_thunk.cc b/ppapi/thunk/ppb_url_loader_trusted_thunk.cc
index 3082f36ed6ac1fb53a9c85732fb6b1cd36184b16..d0c71e1f5ec73e824ad5271930d0cba5a9657925 100644
--- a/ppapi/thunk/ppb_url_loader_trusted_thunk.cc
+++ b/ppapi/thunk/ppb_url_loader_trusted_thunk.cc
@@ -2,16 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// From trusted/ppb_url_loader_trusted.idl modified Wed Apr 17 11:16:00 2013.
+// From trusted/ppb_url_loader_trusted.idl modified Tue Aug 20 08:13:36 2013.
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/trusted/ppb_url_loader_trusted.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
-#include "ppapi/thunk/ppb_instance_api.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
 #include "ppapi/thunk/ppb_url_loader_api.h"
-#include "ppapi/thunk/resource_creation_api.h"
-#include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {
@@ -42,7 +40,8 @@ const PPB_URLLoaderTrusted_0_3 g_ppb_urlloadertrusted_thunk_0_3 = {
 
 }  // namespace
 
-const PPB_URLLoaderTrusted_0_3* GetPPB_URLLoaderTrusted_0_3_Thunk() {
+PPAPI_THUNK_EXPORT const PPB_URLLoaderTrusted_0_3*
+    GetPPB_URLLoaderTrusted_0_3_Thunk() {
   return &g_ppb_urlloadertrusted_thunk_0_3;
 }