Proxy private UMA pepper interface for out-of-process and NaCl plugins.

ppapi/cpp/private/uma_private.cc

Index: ppapi/cpp/private/uma_private.cc
diff --git a/ppapi/cpp/private/uma_private.cc b/ppapi/cpp/private/uma_private.cc
new file mode 100644
index 0000000000000000000000000000000000000000..93838b944aee26f5f77b8420a0386ca6771e59c8
--- /dev/null
+++ b/ppapi/cpp/private/uma_private.cc
@@ -0,0 +1,70 @@
+// Copyright (c) 2014 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/private/uma_private.h"
+
+#include "ppapi/c/pp_errors.h"
+#include "ppapi/c/private/ppb_uma_private.h"
+#include "ppapi/cpp/module_impl.h"
+#include "ppapi/cpp/var.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_UMA_Private_0_2>() {
+  return PPB_UMA_PRIVATE_INTERFACE_0_2;
+}
+
+}  // namespace
+
+UMAPrivate::UMAPrivate() {
+}
+
+UMAPrivate::UMAPrivate(
+    const InstanceHandle& instance) : instance_(instance.pp_instance()) {
+}
+
+UMAPrivate::~UMAPrivate() {
+}
+
+bool UMAPrivate::IsAvailable() {
+  return has_interface<PPB_UMA_Private_0_2>();
+}
+
+void UMAPrivate::HistogramCustomTimes(const std::string& name,
+                                      int64_t sample,
+                                      int64_t min,
+                                      int64_t max,
+                                      uint32_t bucket_count) {
+  if (!IsAvailable())
+    return;
+  get_interface<PPB_UMA_Private_0_2>()->
+      HistogramCustomTimes(instance_, pp::Var(name).pp_var(),
+                           sample, min, max, bucket_count);
+}
+
+void UMAPrivate::HistogramCustomCounts(const std::string& name,
+                                       int32_t sample,
+                                       int32_t min,
+                                       int32_t max,
+                                       uint32_t bucket_count) {
+  if (!IsAvailable())
+    return;
+  get_interface<PPB_UMA_Private_0_2>()->
+      HistogramCustomCounts(instance_, pp::Var(name).pp_var(),
+                            sample, min, max, bucket_count);
+}
+
+void UMAPrivate::HistogramEnumeration(const std::string& name,
+                                      int32_t sample,
+                                      int32_t boundary_value) {
+  if (!IsAvailable())
+    return;
+  get_interface<PPB_UMA_Private_0_2>()->
+      HistogramEnumeration(instance_, pp::Var(name).pp_var(),
+                           sample, boundary_value);
+}
+
+}  // namespace pp