1 files changed, 43 insertions, 0 deletions
diff --git a/chromium/extensions/browser/api/system_memory/memory_info_provider.cc b/chromium/extensions/browser/api/system_memory/memory_info_provider.cc
new file mode 100644
index 00000000000..7d97dde3907
--- /dev/null
+++ b/chromium/extensions/browser/api/system_memory/memory_info_provider.cc
@@ -0,0 +1,43 @@
+// Copyright 2013 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 "extensions/browser/api/system_memory/memory_info_provider.h"
+
+#include "base/sys_info.h"
+
+namespace extensions {
+
+using api::system_memory::MemoryInfo;
+
+// Static member intialization.
+base::LazyInstance<scoped_refptr<MemoryInfoProvider> >
+    MemoryInfoProvider::provider_ = LAZY_INSTANCE_INITIALIZER;
+
+MemoryInfoProvider::MemoryInfoProvider() {
+}
+
+MemoryInfoProvider::~MemoryInfoProvider() {
+}
+
+void MemoryInfoProvider::InitializeForTesting(
+    scoped_refptr<MemoryInfoProvider> provider) {
+  DCHECK(provider.get() != NULL);
+  provider_.Get() = provider;
+}
+
+bool MemoryInfoProvider::QueryInfo() {
+  info_.capacity = static_cast<double>(base::SysInfo::AmountOfPhysicalMemory());
+  info_.available_capacity =
+      static_cast<double>(base::SysInfo::AmountOfAvailablePhysicalMemory());
+  return true;
+}
+
+// static
+MemoryInfoProvider* MemoryInfoProvider::Get() {
+  if (provider_.Get().get() == NULL)
+    provider_.Get() = new MemoryInfoProvider();
+  return provider_.Get().get();
+}
+
+}  // namespace extensions