mojo/public: Include gtest.h as "gtest/gtest.h", instead of via "absolute" path.

mojo/public/cpp/bindings/tests/serialization_api_unittest.cc

 // Copyright 2015 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 "gtest/gtest.h"
 #include "mojo/public/cpp/bindings/array.h"
 #include "mojo/public/cpp/bindings/lib/array_serialization.h"
 #include "mojo/public/cpp/bindings/lib/validation_errors.h"
 #include "mojo/public/cpp/system/message_pipe.h"
 #include "mojo/public/interfaces/bindings/tests/rect.mojom.h"
 #include "mojo/public/interfaces/bindings/tests/test_structs.mojom.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace test {
 namespace {
 
 class StructSerializationAPITest : public testing::Test {
  public:
   // We Serialize and Deserialize the given |Type|, and expect the given
   // serialization warnings.  We also validate (and expect a given error) in
   // between serialization and deserialization.
@@ skipping 174 matching lines @@
   // don't Validate.
   co_data->header_.num_bytes = 0u;
   co.DeserializeWithoutValidation(buf);
   EXPECT_EQ(kMagic, co_data->other);
   EXPECT_EQ(0u, co_data->header_.num_bytes);
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo