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

ui/events/gestures/gesture_recognizer_impl.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 "ui/events/gestures/gesture_recognizer_impl.h"
 
 #include <limits>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 73 matching lines @@
 GestureConsumer* GestureRecognizerImpl::GetTargetForGestureEvent(
     const GestureEvent& event) {
   GestureConsumer* target = NULL;
   int touch_id = event.details().oldest_touch_id();
   target = touch_id_target_for_gestures_[touch_id];
   return target;
 }
 
 GestureConsumer* GestureRecognizerImpl::GetTargetForLocation(
     const gfx::PointF& location, int source_device_id) {
-  const int max_distance =
+  const float max_distance =
       GestureConfiguration::max_separation_for_gesture_touches_in_pixels();
 
   gfx::PointF closest_point;
   int closest_touch_id = 0;
   float closest_distance_squared = std::numeric_limits<float>::infinity();
 
   std::map<GestureConsumer*, GestureProviderAura*>::iterator i;
   for (i = consumer_gesture_provider_.begin();
        i != consumer_gesture_provider_.end();
        ++i) {
@@ skipping 234 matching lines @@
   std::vector<GestureEventHelper*>::iterator it;
   for (it = helpers.begin(); it != helpers.end(); ++it)
     gesture_recognizer->AddGestureEventHelper(*it);
 
   helpers.clear();
   g_gesture_recognizer_instance =
       static_cast<GestureRecognizerImpl*>(gesture_recognizer);
 }
 
 }  // namespace ui