Re-land r92885, which was reverted in r92891.

ppapi/thunk/ppb_graphics_3d_trusted_thunk.cc

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_graphics_3d_api.h"
+#include "ppapi/thunk/resource_creation_api.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+typedef EnterResource<PPB_Graphics3D_API> EnterGraphics3D;
+
+PP_Graphics3DTrustedState GetErrorState() {
+  PP_Graphics3DTrustedState error_state = { 0 };
+  error_state.error = PPB_GRAPHICS3D_TRUSTED_ERROR_GENERICERROR;
+  return error_state;
+}
+
+PP_Resource CreateRaw(PP_Instance instance,
+                      PP_Config3D_Dev config,
+                      PP_Resource share_context,
+                      const int32_t* attrib_list) {
+  EnterFunction<ResourceCreationAPI> enter(instance, true);
+  if (enter.failed())
+    return 0;
+  return enter.functions()->CreateGraphics3DRaw(
+      instance, config, share_context, attrib_list);
+}
+
+PP_Bool InitCommandBuffer(PP_Resource context, int32_t size) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->InitCommandBuffer(size);
+}
+
+PP_Bool GetRingBuffer(PP_Resource context,
+                      int* shm_handle,
+                      uint32_t* shm_size) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->GetRingBuffer(shm_handle, shm_size);
+}
+
+PP_Graphics3DTrustedState GetState(PP_Resource context) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return GetErrorState();
+  return enter.object()->GetState();
+}
+
+int32_t CreateTransferBuffer(PP_Resource context, uint32_t size) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->CreateTransferBuffer(size);
+}
+
+PP_Bool DestroyTransferBuffer(PP_Resource context, int32_t id) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->DestroyTransferBuffer(id);
+}
+
+PP_Bool GetTransferBuffer(PP_Resource context,
+                          int32_t id,
+                          int* shm_handle,
+                          uint32_t* shm_size) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->GetTransferBuffer(id, shm_handle, shm_size);
+}
+
+PP_Bool Flush(PP_Resource context, int32_t put_offset) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return PP_FALSE;
+  return enter.object()->Flush(put_offset);
+}
+
+PP_Graphics3DTrustedState FlushSync(PP_Resource context, int32_t put_offset) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return GetErrorState();
+  return enter.object()->FlushSync(put_offset);
+}
+
+PP_Graphics3DTrustedState FlushSyncFast(PP_Resource context,
+                                        int32_t put_offset,
+                                        int32_t last_known_get) {
+  EnterGraphics3D enter(context, true);
+  if (enter.failed())
+    return GetErrorState();
+  return enter.object()->FlushSyncFast(put_offset, last_known_get);
+}
+
+const PPB_Graphics3DTrusted_Dev g_ppb_graphics_3d_trusted_thunk = {
+  &CreateRaw,
+  &InitCommandBuffer,
+  &GetRingBuffer,
+  &GetState,
+  &CreateTransferBuffer,
+  &DestroyTransferBuffer,
+  &GetTransferBuffer,
+  &Flush,
+  &FlushSync,
+  &FlushSyncFast,
+};
+
+}  // namespace
+
+const PPB_Graphics3DTrusted_Dev* GetPPB_Graphics3DTrusted_Thunk() {
+  return &g_ppb_graphics_3d_trusted_thunk;
+}
+
+}  // namespace thunk
+}  // namespace ppapi
+