Pull in gmock for standalone pdfium builds.

testing/embedder_test_mock_delegate.h

+// Copyright 2015 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef TESTING_EMBEDDER_TEST_MOCK_DELEGATE_H_
+#define TESTING_EMBEDDER_TEST_MOCK_DELEGATE_H_
+
+#include "embedder_test.h"
+#include "testing/gmock/include/gmock/gmock.h"
+
+class EmbedderTestMockDelegate : public EmbedderTest::Delegate {
+ public:
+  MOCK_METHOD1(UnsupportedHandler, void(int type));
+  MOCK_METHOD4(Alert, int(FPDF_WIDESTRING message, FPDF_WIDESTRING title,
+                          int type, int icon));
+};
+
+#endif  // TESTING_EMBEDDER_TEST_MOCK_DELEGATE_H_
+