Add ExtensionsTestBrowserContext class for test.

extensions/common/extensions_test_browser_context.cc

Index: extensions/common/extensions_test_browser_context.cc
diff --git a/extensions/common/extensions_test_browser_context.cc b/extensions/common/extensions_test_browser_context.cc
new file mode 100644
index 0000000000000000000000000000000000000000..24977888a89a8850c7abbe3b2ce3eb00f882b5e3
--- /dev/null
+++ b/extensions/common/extensions_test_browser_context.cc
@@ -0,0 +1,23 @@
+// 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/common/extensions_test_browser_context.h"
+
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "extensions/browser/extensions_browser_client.h"
+#include "extensions/browser/test_extensions_browser_client.h"
+
+namespace extensions {
+
+ExtensionsTestBrowserContext::ExtensionsTestBrowserContext() {
+  ExtensionsBrowserClient::Set(new TestExtensionsBrowserClient(this));

[Yoyo Zhou, 2014/07/15 19:27:30]

We should also CreateBrowserContextServices here.

[limasdf, 2014/07/16 16:10:19]

Used CreateBrowserContextServicesForTest instead.
It seems better approach for test, and TestingProfile uses it as well.

+}
+
+ExtensionsTestBrowserContext::~ExtensionsTestBrowserContext() {
+  BrowserContextDependencyManager::GetInstance()->DestroyBrowserContextServices(
+      this);
+  ExtensionsBrowserClient::Set(NULL);
+}
+
+}  // namespace extensions