Makes windows scale slightly when dragging the caption. Also wired

ash/wm/window_resizer.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 "ash/wm/window_resizer.h"
 
 #include "ash/shell.h"
 #include "ash/wm/root_window_event_filter.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/root_window.h"
@@ skipping 204 matching lines @@
     return;
   }
 
   ui::ScopedLayerAnimationSettings scoped_setter(
       window_->layer()->GetAnimator());
   // Use a small duration since the grid is small.
   scoped_setter.SetTransitionDuration(base::TimeDelta::FromMilliseconds(100));
   window_->SetBounds(new_bounds);
 }
 
+void WindowResizer::RevertDrag() {
+  if (!did_move_or_resize_)
+    return;
+
+  window_->SetBounds(initial_bounds_);
+}
+
 gfx::Rect WindowResizer::GetBoundsForDrag(const gfx::Point& location) {
   if (!is_resizable())
     return window_->bounds();
 
   // Dragging a window moves the local coordinate frame, so do arithmetic
   // in the parent coordinate frame.
   gfx::Point event_location_in_parent(location);
   aura::Window::ConvertPointToWindow(window_, window_->parent(),
                                      &event_location_in_parent);
   int delta_x = event_location_in_parent.x() - initial_location_in_parent_.x();
@@ skipping 113 matching lines @@
     int max_height = gfx::Screen::GetMonitorAreaNearestWindow(window_).height();
     if (height > max_height) {
       height = max_height;
       *delta_y = -y_multiplier * (initial_bounds_.height() - max_height);
     }
   }
   return height;
 }
 
 }  // namespace aura