Refactor access to scroll deltas in GesturePoint

ui/aura/gestures/gesture_recognizer_unittest.cc

 // Copyright (c) 2012 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/memory/scoped_vector.h"
 #include "base/run_loop.h"
 #include "base/string_number_conversions.h"
 #include "base/timer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/env.h"
@@ skipping 913 matching lines @@
               delegate->scroll_begin_position().ToString());
     EXPECT_EQ(gfx::Rect(kPositionX + kScrollAmount - radius,
                         kPositionY + kScrollAmount - radius,
                         radius * 2,
                         radius * 2).ToString(),
               delegate->bounding_box().ToString());
 
     // Release the touch. This should end the scroll.
     delegate->Reset();
     ui::TouchEvent release(ui::ET_TOUCH_RELEASED,
-                               gfx::Point(kPositionX, kPositionY),
+                               gfx::Point(kPositionX + kScrollAmount,
+                                          kPositionY + kScrollAmount),
                                kTouchId, press.time_stamp() +
                                base::TimeDelta::FromMilliseconds(50));
     root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&release);
-    EXPECT_EQ(gfx::Rect(kPositionX - radius,
-                        kPositionY - radius,
+    EXPECT_EQ(gfx::Rect(kPositionX + kScrollAmount - radius,
+                        kPositionY + kScrollAmount - radius,
                         radius * 2,
                         radius * 2).ToString(),
               delegate->bounding_box().ToString());
   }
   ui::GestureConfiguration::set_default_radius(0);
 }
 
 // Check Scroll End Events report correct velocities
 // if the user was on a horizontal rail
 TEST_F(GestureRecognizerTest, GestureEventHorizontalRailFling) {
@@ skipping 2065 matching lines @@
       press1.time_stamp() + base::TimeDelta::FromMilliseconds(40));
   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&move4);
   EXPECT_TRUE(delegate->scroll_update());
   EXPECT_EQ(-1, delegate->scroll_y());
 
   delegate->Reset();
 }
 
 }  // namespace test
 }  // namespace aura