1 files changed, 46 insertions, 0 deletions
diff --git a/chromium/extensions/renderer/lazy_background_page_native_handler.cc b/chromium/extensions/renderer/lazy_background_page_native_handler.cc
new file mode 100644
index 00000000000..f09beec7a7f
--- /dev/null
+++ b/chromium/extensions/renderer/lazy_background_page_native_handler.cc
@@ -0,0 +1,46 @@
+// Copyright 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 "extensions/renderer/lazy_background_page_native_handler.h"
+
+#include "base/bind.h"
+#include "content/public/renderer/render_frame.h"
+#include "extensions/common/extension_messages.h"
+#include "extensions/renderer/extension_frame_helper.h"
+#include "extensions/renderer/script_context.h"
+
+namespace extensions {
+
+LazyBackgroundPageNativeHandler::LazyBackgroundPageNativeHandler(
+    ScriptContext* context)
+    : ObjectBackedNativeHandler(context) {
+  RouteFunction(
+      "IncrementKeepaliveCount",
+      base::Bind(&LazyBackgroundPageNativeHandler::IncrementKeepaliveCount,
+                 base::Unretained(this)));
+  RouteFunction(
+      "DecrementKeepaliveCount",
+      base::Bind(&LazyBackgroundPageNativeHandler::DecrementKeepaliveCount,
+                 base::Unretained(this)));
+}
+
+void LazyBackgroundPageNativeHandler::IncrementKeepaliveCount(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  if (context() && ExtensionFrameHelper::IsContextForEventPage(context())) {
+    content::RenderFrame* render_frame = context()->GetRenderFrame();
+    render_frame->Send(new ExtensionHostMsg_IncrementLazyKeepaliveCount(
+        render_frame->GetRoutingID()));
+  }
+}
+
+void LazyBackgroundPageNativeHandler::DecrementKeepaliveCount(
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  if (context() && ExtensionFrameHelper::IsContextForEventPage(context())) {
+    content::RenderFrame* render_frame = context()->GetRenderFrame();
+    render_frame->Send(new ExtensionHostMsg_DecrementLazyKeepaliveCount(
+        render_frame->GetRoutingID()));
+  }
+}
+
+}  // namespace extensions