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

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

 // Copyright 2016 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 "mojo/public/cpp/bindings/lib/synchronous_connector.h"
+#include "mojo/public/cpp/bindings/synchronous_interface_ptr.h"
 
 #include <thread>
 #include <utility>
 
+#include "gtest/gtest.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
-#include "mojo/public/cpp/bindings/synchronous_interface_ptr.h"
 #include "mojo/public/cpp/utility/run_loop.h"
 #include "mojo/public/interfaces/bindings/tests/math_calculator.mojom-sync.h"
 #include "mojo/public/interfaces/bindings/tests/math_calculator.mojom.h"
 #include "mojo/public/interfaces/bindings/tests/scoping.mojom-sync.h"
 #include "mojo/public/interfaces/bindings/tests/scoping.mojom.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
 namespace mojo {
 namespace test {
 namespace {
 
 using CalcCallback = mojo::Callback<void(double)>;
 
 // This runs in a separate thread.
 class MathCalculatorImpl : public math::Calculator {
  public:
@@ skipping 186 matching lines @@
   // While B & C have fallen out of scope, the service-side endpoints of the
   // pipes will remain until they are flushed.
   EXPECT_FALSE(a_impl.d_called());
   PumpMessages();
   EXPECT_TRUE(a_impl.d_called());
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace mojo