Add support for generating thunk source from IDL.

This introduces a few new IDL attributes:
  generate_thunk - Enables thunk generation for an IDL file.
  create_func - Overrides the guessed create function name.
  on_failure - Overrides the default return value on failure.
  report_errors - Allows error reporting to be disabled.

  By using these attributes, we can generate _thunk.cc files for many IDL
  files.

I'll send CLs for moving the thunks separately, as I found it tiring to
review them all in a big lump. I have PPB_Widget_Dev here as an example.

BUG=


Review URL: https://chromiumcodereview.appspot.com/11417010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@168450 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 20 insertions, 12 deletions

diff --git a/ppapi/thunk/ppb_widget_thunk.cc b/ppapi/thunk/ppb_widget_thunk.cc
index f00b48b..c7e243e 100644
--- a/ppapi/thunk/ppb_widget_thunk.cc
+++ b/ppapi/thunk/ppb_widget_thunk.cc
@@ -2,10 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "ppapi/thunk/thunk.h"
+// From dev/ppb_widget_dev.idl modified Fri Nov 16 11:26:06 2012.
+
+#include "ppapi/c/dev/ppb_widget_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_instance_api.h"
 #include "ppapi/thunk/ppb_widget_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
+#include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {
@@ -17,28 +23,30 @@ PP_Bool IsWidget(PP_Resource resource) {
   return PP_FromBool(enter.succeeded());
 }
 
-PP_Bool Paint(PP_Resource widget, const PP_Rect* rect, PP_Resource image_id) {
+PP_Bool Paint(PP_Resource widget,
+              const struct PP_Rect* rect,
+              PP_Resource image) {
   EnterResource<PPB_Widget_API> enter(widget, false);
   if (enter.failed())
     return PP_FALSE;
-  return enter.object()->Paint(rect, image_id);
+  return enter.object()->Paint(rect, image);
 }
 
-PP_Bool HandleEvent(PP_Resource widget, PP_Resource pp_input_event) {
+PP_Bool HandleEvent(PP_Resource widget, PP_Resource input_event) {
   EnterResource<PPB_Widget_API> enter(widget, false);
   if (enter.failed())
     return PP_FALSE;
-  return enter.object()->HandleEvent(pp_input_event);
+  return enter.object()->HandleEvent(input_event);
 }
 
-PP_Bool GetLocation(PP_Resource widget, PP_Rect* location) {
+PP_Bool GetLocation(PP_Resource widget, struct PP_Rect* location) {
   EnterResource<PPB_Widget_API> enter(widget, false);
   if (enter.failed())
     return PP_FALSE;
   return enter.object()->GetLocation(location);
 }
 
-void SetLocation(PP_Resource widget, const PP_Rect* location) {
+void SetLocation(PP_Resource widget, const struct PP_Rect* location) {
   EnterResource<PPB_Widget_API> enter(widget, false);
   if (enter.succeeded())
     enter.object()->SetLocation(location);
@@ -50,7 +58,7 @@ void SetScale(PP_Resource widget, float scale) {
     enter.object()->SetScale(scale);
 }
 
-const PPB_Widget_Dev_0_3 g_ppb_widget_thunk_0_3 = {
+const PPB_Widget_Dev_0_3 g_ppb_widget_dev_thunk_0_3 = {
   &IsWidget,
   &Paint,
   &HandleEvent,
@@ -58,23 +66,23 @@ const PPB_Widget_Dev_0_3 g_ppb_widget_thunk_0_3 = {
   &SetLocation,
 };
 
-const PPB_Widget_Dev_0_4 g_ppb_widget_thunk_0_4 = {
+const PPB_Widget_Dev_0_4 g_ppb_widget_dev_thunk_0_4 = {
   &IsWidget,
   &Paint,
   &HandleEvent,
   &GetLocation,
   &SetLocation,
-  &SetScale
+  &SetScale,
 };
 
 }  // namespace
 
 const PPB_Widget_Dev_0_3* GetPPB_Widget_Dev_0_3_Thunk() {
-  return &g_ppb_widget_thunk_0_3;
+  return &g_ppb_widget_dev_thunk_0_3;
 }
 
 const PPB_Widget_Dev_0_4* GetPPB_Widget_Dev_0_4_Thunk() {
-  return &g_ppb_widget_thunk_0_4;
+  return &g_ppb_widget_dev_thunk_0_4;
 }
 
 }  // namespace thunk