Pepper: Add a C++ wrapper for the trusted file chooser.

ppapi/cpp/trusted/file_chooser_trusted.cc

Index: ppapi/cpp/trusted/file_chooser_trusted.cc
diff --git a/ppapi/cpp/trusted/file_chooser_trusted.cc b/ppapi/cpp/trusted/file_chooser_trusted.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d0c6c50679e099bf94042174637d92646c080c9a
--- /dev/null
+++ b/ppapi/cpp/trusted/file_chooser_trusted.cc
@@ -0,0 +1,53 @@
+// 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/cpp/trusted/file_chooser_trusted.h"
+
+#include "ppapi/c/pp_bool.h"
+#include "ppapi/cpp/completion_callback.h"
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/cpp/module_impl.h"
+#include "ppapi/cpp/var.h"
+#include "ppapi/c/trusted/ppb_file_chooser_trusted.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_FileChooserTrusted>() {
+  return PPB_FILECHOOSER_TRUSTED_INTERFACE;
+}
+
+}  // namespace
+
+FileChooser_Trusted::FileChooser_Trusted() : save_as_(false) {
+}
+
+FileChooser_Trusted::FileChooser_Trusted(const Instance* instance,
+                                         PP_FileChooserMode_Dev mode,
+                                         const Var& accept_mime_types,
+                                         bool save_as,
+                                         const std::string& suggested_file_name)
+    : FileChooser_Dev(instance, mode, accept_mime_types),
+      save_as_(save_as),
+      suggested_file_name_(suggested_file_name) {
+}
+
+FileChooser_Trusted::FileChooser_Trusted(const FileChooser_Trusted& other)
+    : FileChooser_Dev(other),
+      save_as_(other.save_as_),
+      suggested_file_name_(other.suggested_file_name_) {
+}
+
+int32_t FileChooser_Trusted::Show(const CompletionCallback& cc) {
+  if (!has_interface<PPB_FileChooserTrusted>())
+    return cc.MayForce(PP_ERROR_NOINTERFACE);
+  return get_interface<PPB_FileChooserTrusted>()->ShowWithoutUserGesture(
+      pp_resource(),
+      PP_FromBool(save_as_),
+      Var(suggested_file_name_).pp_var(),
+      cc.pp_completion_callback());
+}
+
+}  // namespace pp