Revert of [blink] Unique pointers in Platform.h

ui/events/blink/input_handler_proxy_unittest.cc

 // Copyright 2013 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 "ui/events/blink/input_handler_proxy.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/macros.h"
@@ skipping 278 matching lines @@
   MOCK_METHOD1(DispatchNonBlockingEventToMainThread_,
                void(const WebInputEvent&));
 
   void DispatchNonBlockingEventToMainThread(
       WebScopedInputEvent event,
       const ui::LatencyInfo& latency_info) override {
     CHECK(event.get());
     DispatchNonBlockingEventToMainThread_(*event.get());
   }
 
-  std::unique_ptr<blink::WebGestureCurve> CreateFlingAnimationCurve(
+  blink::WebGestureCurve* CreateFlingAnimationCurve(
       WebGestureDevice deviceSource,
       const WebFloatPoint& velocity,
       const WebSize& cumulative_scroll) override {
-    return base::MakeUnique<FakeWebGestureCurve>(
+    return new FakeWebGestureCurve(
         blink::WebFloatSize(velocity.x, velocity.y),
         blink::WebFloatSize(cumulative_scroll.width, cumulative_scroll.height));
   }
 
   MOCK_METHOD4(DidOverscroll,
                void(const gfx::Vector2dF& accumulated_overscroll,
                     const gfx::Vector2dF& latest_overscroll_delta,
                     const gfx::Vector2dF& current_fling_velocity,
                     const gfx::PointF& causal_event_viewport_point));
   void DidStopFlinging() override {}
@@ skipping 3504 matching lines @@
 INSTANTIATE_TEST_CASE_P(AnimateInput,
                         InputHandlerProxyWithoutWheelScrollLatchingTest,
                         testing::ValuesIn(test_types));
 
 INSTANTIATE_TEST_CASE_P(InputHandlerProxyEventQueueTests,
                         InputHandlerProxyEventQueueTest,
                         testing::Bool());
 
 }  // namespace test
 }  // namespace ui