PPAPI: Force async callback invocation option.

ppapi/thunk/ppb_file_io_thunk.cc

Index: ppapi/thunk/ppb_file_io_thunk.cc
===================================================================
--- ppapi/thunk/ppb_file_io_thunk.cc	(revision 91178)
+++ ppapi/thunk/ppb_file_io_thunk.cc	(working copy)
@@ -5,8 +5,9 @@
 #include "ppapi/c/dev/ppb_file_io_dev.h"
 #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/enter.h"
 #include "ppapi/thunk/ppb_file_io_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
@@ -33,8 +34,9 @@
              PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Open(file_ref, open_flags, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Open(file_ref, open_flags, callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t Query(PP_Resource file_io,
@@ -42,8 +44,9 @@
               PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Query(info, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Query(info, callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t Touch(PP_Resource file_io,
@@ -52,8 +55,10 @@
               PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Touch(last_access_time, last_modified_time, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Touch(last_access_time, last_modified_time,
+                                         callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t Read(PP_Resource file_io,
@@ -63,8 +68,10 @@
              PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Read(offset, buffer, bytes_to_read, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Read(offset, buffer, bytes_to_read,
+                                        callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t Write(PP_Resource file_io,
@@ -74,8 +81,10 @@
               PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Write(offset, buffer, bytes_to_write, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Write(offset, buffer, bytes_to_write,
+                                         callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t SetLength(PP_Resource file_io,
@@ -83,16 +92,18 @@
                   PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->SetLength(length, callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->SetLength(length, callback);
+  return MayForceCallback(callback, result);
 }
 
 int32_t Flush(PP_Resource file_io,
               PP_CompletionCallback callback) {
   EnterResource<PPB_FileIO_API> enter(file_io, true);
   if (enter.failed())
-    return PP_ERROR_BADRESOURCE;
-  return enter.object()->Flush(callback);
+    return MayForceCallback(callback, PP_ERROR_BADRESOURCE);
+  int32_t result = enter.object()->Flush(callback);
+  return MayForceCallback(callback, result);
 }
 
 void Close(PP_Resource file_io) {