Type conversion fixes, ui/ edition.

ui/events/gesture_detection/gesture_provider.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 "ui/events/gesture_detection/gesture_provider.h"
 
 #include <cmath>
 
 #include "base/auto_reset.h"
 #include "base/debug/trace_event.h"
@@ skipping 263 matching lines @@
 
   virtual bool OnScroll(const MotionEvent& e1,
                         const MotionEvent& e2,
                         float raw_distance_x,
                         float raw_distance_y) override {
     float distance_x = raw_distance_x;
     float distance_y = raw_distance_y;
     if (!scroll_event_sent_) {
       // Remove the touch slop region from the first scroll event to avoid a
       // jump.
-      double distance =
+      float distance =
           std::sqrt(distance_x * distance_x + distance_y * distance_y);
-      double epsilon = 1e-3;
+      float epsilon = 1e-3f;
       if (distance > epsilon) {
-        double ratio =
-            std::max(0.,
+        float ratio =
+            std::max(0.f,
                      distance - config_.gesture_detector_config.touch_slop) /
             distance;
         distance_x *= ratio;
         distance_y *= ratio;
       }
 
       // Note that scroll start hints are in distance traveled, where
       // scroll deltas are in the opposite direction.
       GestureEventDetails scroll_details(
           ET_GESTURE_SCROLL_BEGIN, -raw_distance_x, -raw_distance_y);
@@ skipping 513 matching lines @@
   // null'ing of the listener until the sequence has ended.
   if (current_down_event_)
     return;
 
   const bool double_tap_enabled =
       double_tap_support_for_page_ && double_tap_support_for_platform_;
   gesture_listener_->SetDoubleTapEnabled(double_tap_enabled);
 }
 
 }  //  namespace ui