Revert of Remove unused PPB_View_Dev

ppapi/thunk/ppb_view_dev_thunk.cc

+// Copyright (c) 2012 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.
+
+// From dev/ppb_view_dev.idl modified Tue Aug 20 08:13:36 2013.
+
+#include "ppapi/c/dev/ppb_view_dev.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/shared_impl/tracked_callback.h"
+#include "ppapi/thunk/enter.h"
+#include "ppapi/thunk/ppapi_thunk_export.h"
+#include "ppapi/thunk/ppb_view_api.h"
+
+namespace ppapi {
+namespace thunk {
+
+namespace {
+
+float GetDeviceScale(PP_Resource resource) {
+  VLOG(4) << "PPB_View_Dev::GetDeviceScale()";
+  EnterResource<PPB_View_API> enter(resource, true);
+  if (enter.failed())
+    return 0.0f;
+  return enter.object()->GetDeviceScale();
+}
+
+float GetCSSScale(PP_Resource resource) {
+  VLOG(4) << "PPB_View_Dev::GetCSSScale()";
+  EnterResource<PPB_View_API> enter(resource, true);
+  if (enter.failed())
+    return 0.0f;
+  return enter.object()->GetCSSScale();
+}
+
+const PPB_View_Dev_0_1 g_ppb_view_dev_thunk_0_1 = {
+  &GetDeviceScale,
+  &GetCSSScale
+};
+
+}  // namespace
+
+PPAPI_THUNK_EXPORT const PPB_View_Dev_0_1* GetPPB_View_Dev_0_1_Thunk() {
+  return &g_ppb_view_dev_thunk_0_1;
+}
+
+}  // namespace thunk
+}  // namespace ppapi