Pepper: Reduce includes in generated thunks.

ppapi/generators/idl_thunk.py

Index: ppapi/generators/idl_thunk.py
diff --git a/ppapi/generators/idl_thunk.py b/ppapi/generators/idl_thunk.py
index 023335c9a2d0b4ba80ba108e5b0121e2a4c305fa..d06defbfd2c193619875a0f98f86da0acecebd66 100755
--- a/ppapi/generators/idl_thunk.py
+++ b/ppapi/generators/idl_thunk.py
@@ -460,9 +460,7 @@ class TGen(GeneratorByFile):
     includes = ['ppapi/c/pp_errors.h',
                 'ppapi/shared_impl/tracked_callback.h',
                 'ppapi/thunk/enter.h',
-                'ppapi/thunk/ppb_instance_api.h',
-                'ppapi/thunk/resource_creation_api.h',
-                'ppapi/thunk/thunk.h']
+                'ppapi/thunk/ppapi_thunk_export.h']
     includes.append(_GetHeaderFileName(filenode))
     for api in meta.Apis():
       includes.append('%s' % api.lower())
@@ -547,10 +545,11 @@ class TGen(GeneratorByFile):
     out.Write('}  // namespace\n')
     out.Write('\n')
     for thunk_type, thunk_name in version_list:
-      thunk_decl = 'const %s* Get%s_Thunk() {\n' % (thunk_type, thunk_type)
+      thunk_decl = ('PPAPI_THUNK_EXPORT const %s* Get%s_Thunk() {\n' %
+                    (thunk_type, thunk_type))
       if len(thunk_decl) > 80:
-        thunk_decl = 'const %s*\n    Get%s_Thunk() {\n' % (thunk_type,
-                                                           thunk_type)
+        thunk_decl = ('PPAPI_THUNK_EXPORT const %s*\n    Get%s_Thunk() {\n' %
+                      (thunk_type, thunk_type))
       out.Write(thunk_decl)
       out.Write('  return &%s;\n' % thunk_name)
       out.Write('}\n')