views: Update event-related API to use PointF/RectF instead of Point/Rect.

ui/views/widget/root_view.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/views/widget/root_view.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 570 matching lines @@
       return;
     default:
       break;
   }
 
   View* gesture_handler = NULL;
   if (views::switches::IsRectBasedTargetingEnabled() &&
       !event->details().bounding_box().IsEmpty()) {
     // TODO(tdanderson): Pass in the bounding box to GetEventHandlerForRect()
     // once crbug.com/313392 is resolved.
-    gfx::Rect touch_rect(event->details().bounding_box());
+    gfx::RectF touch_rect(event->details().bounding_box());
     touch_rect.set_origin(event->location());
     touch_rect.Offset(-touch_rect.width() / 2, -touch_rect.height() / 2);
     gesture_handler = GetEventHandlerForRect(touch_rect);
   } else {
     gesture_handler = GetEventHandlerForPoint(event->location());
   }
 
   // Walk up the tree until we find a view that wants the gesture event.
   for (gesture_handler_ = gesture_handler;
        gesture_handler_ && (gesture_handler_ != this);
@@ skipping 174 matching lines @@
 
 #ifndef NDEBUG
   DCHECK(!event_dispatch_target_ || Contains(event_dispatch_target_));
 #endif
 
   return details;
 }
 
 }  // namespace internal
 }  // namespace views