Pepper: Reduce includes in generated thunks.

There are some unnecessary includes in generated thunks. We should remove these
for clarity, and (hopefully) to reduce build time. A small test showed that
ppb_view_thunk.cc built 18% faster after the change, but that's well within the
noise on my local system.

BUG=334727

Review URL: https://codereview.chromium.org/137353003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245111 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/ppapi/thunk/ppb_instance_thunk.cc b/ppapi/thunk/ppb_instance_thunk.cc
index f55c7ee..770998f 100644
--- a/ppapi/thunk/ppb_instance_thunk.cc
+++ b/ppapi/thunk/ppb_instance_thunk.cc
@@ -2,15 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// From ppb_instance.idl modified Thu Feb 28 11:58:17 2013.
+// From ppb_instance.idl modified Tue Aug 20 08:13:36 2013.
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppb_instance.h"
 #include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
-#include "ppapi/thunk/ppb_instance_api.h"
-#include "ppapi/thunk/resource_creation_api.h"
-#include "ppapi/thunk/thunk.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
 
 namespace ppapi {
 namespace thunk {
@@ -40,7 +38,7 @@
 
 }  // namespace
 
-const PPB_Instance_1_0* GetPPB_Instance_1_0_Thunk() {
+PPAPI_THUNK_EXPORT const PPB_Instance_1_0* GetPPB_Instance_1_0_Thunk() {
   return &g_ppb_instance_thunk_1_0;
 }