Change GestureConfiguration types to be consistent with each other and with the

ash/frame/caption_buttons/frame_size_button_unittest.cc

 // Copyright 2014 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 "ash/frame/caption_buttons/frame_size_button.h"
 
 #include "ash/frame/caption_buttons/frame_caption_button.h"
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
@@ skipping 228 matching lines @@
   // Snap left.
   generator.GestureScrollSequence(
       CenterPointInScreen(size_button()),
       CenterPointInScreen(minimize_button()),
       base::TimeDelta::FromMilliseconds(100),
       3);
   RunAllPendingInMessageLoop();
   EXPECT_TRUE(HasStateType(wm::WINDOW_STATE_TYPE_LEFT_SNAPPED));
 
   // 3) Test with tap gestures.
-  const int touch_default_radius =
+  const float touch_default_radius =
       ui::GestureConfiguration::default_radius();
   ui::GestureConfiguration::set_default_radius(0);
   // Snap right.
   generator.MoveMouseTo(CenterPointInScreen(size_button()));
   generator.PressMoveAndReleaseTouchTo(CenterPointInScreen(close_button()));
   RunAllPendingInMessageLoop();
   EXPECT_TRUE(HasStateType(wm::WINDOW_STATE_TYPE_RIGHT_SNAPPED));
   // Snap left.
   generator.MoveMouseTo(CenterPointInScreen(size_button()));
   generator.PressMoveAndReleaseTouchTo(CenterPointInScreen(minimize_button()));
@@ skipping 206 matching lines @@
 
   // None of the buttons should stay pressed and the buttons should have their
   // regular icons.
   EXPECT_TRUE(AllButtonsInNormalState());
   EXPECT_EQ(CAPTION_BUTTON_ICON_MINIMIZE, minimize_button()->icon());
   EXPECT_EQ(CAPTION_BUTTON_ICON_CLOSE, close_button()->icon());
 }
 
 }  // namespace test
 }  // namespace ash