Remove CrApplication dependency from base

base/test/mock_chrome_application_mac.mm

Index: base/test/mock_chrome_application_mac.mm
diff --git a/base/test/mock_chrome_application_mac.mm b/base/test/mock_chrome_application_mac.mm
new file mode 100644
index 0000000000000000000000000000000000000000..f7010c4dac89d4feadb6bc93498ca39146347e37
--- /dev/null
+++ b/base/test/mock_chrome_application_mac.mm
@@ -0,0 +1,19 @@
+// Copyright (c) 2010 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 "base/test/mock_chrome_application_mac.h"
+
+@implementation MockCrApp
+- (BOOL)isHandlingSendEvent {
+  return NO;
+}
+@end
+
+namespace mock_cr_app {
+
+void RegisterMockCrApp() {
+  [MockCrApp sharedApplication];
+}
+
+}  // namespace mock_cr_app