Use macros to define pepper interfaces

ppapi/thunk/ppb_console_thunk.cc

Index: ppapi/thunk/ppb_console_thunk.cc
diff --git a/ppapi/thunk/ppb_console_thunk.cc b/ppapi/thunk/ppb_console_thunk.cc
new file mode 100644
index 0000000000000000000000000000000000000000..509c128a2ef82fa2a7c17b04e89c9e3fef56a012
--- /dev/null
+++ b/ppapi/thunk/ppb_console_thunk.cc
@@ -0,0 +1,42 @@
+// 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/c/dev/ppb_console_dev.h"
+#include "ppapi/thunk/thunk.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppb_instance_api.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+void Log(PP_Instance instance, PP_LogLevel_Dev level, struct PP_Var value) {
+  EnterInstance enter(instance);
+  if (enter.succeeded())
+    return enter.functions()->Log(instance, level, value);
+}
+
+void LogWithSource(PP_Instance instance,
+                   PP_LogLevel_Dev level,
+                   PP_Var source,
+                   PP_Var value) {
+  EnterInstance enter(instance);
+  if (enter.succeeded())
+    return enter.functions()->LogWithSource(instance, level, source, value);
+}
+
+const PPB_Console_Dev g_ppb_console_thunk = {
+  &Log,
+  &LogWithSource
+};
+
+}  // namespace
+
+const PPB_Console_Dev* GetPPB_Console_Dev_Thunk() {
+  return &g_ppb_console_thunk;
+}
+
+}  // namespace thunk
+}  // namespace ppapi