Add support for rect-based event targeting in views

ui/message_center/views/notification_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/message_center/views/notification_view.h"
 
 #include "base/command_line.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
@@ skipping 677 matching lines @@
   MessageView::OnFocus();
   ScrollRectToVisible(GetLocalBounds());
 }
 
 void NotificationView::ScrollRectToVisible(const gfx::Rect& rect) {
   // Notification want to show the whole notification when a part of it (like
   // a button) gets focused.
   views::View::ScrollRectToVisible(GetLocalBounds());
 }
 
-views::View* NotificationView::GetEventHandlerForPoint(
-    const gfx::Point& point) {
+views::View* NotificationView::GetEventHandlerForRect(const gfx::Rect& rect) {
+  // TODO(tdanderson): Modify this function to support rect-based event
+  // targeting. Using the center point of |rect| preserves this function's
+  // expected behavior for the time being.
+  gfx::Point point = rect.CenterPoint();
+
   // Want to return this for underlying views, otherwise GetCursor is not
   // called. But buttons are exceptions, they'll have their own event handlings.
   std::vector<views::View*> buttons(action_buttons_);
   buttons.push_back(close_button());
   buttons.push_back(expand_button());
 
   for (size_t i = 0; i < buttons.size(); ++i) {
     gfx::Point point_in_child = point;
     ConvertPointToTarget(this, buttons[i], &point_in_child);
     if (buttons[i]->HitTestPoint(point_in_child))
@@ skipping 80 matching lines @@
   return message_view_ ?
          message_view_->GetLinesForWidthAndLimit(width, limit) : 0;
 }
 
 int NotificationView::GetMessageHeight(int width, int limit) {
   return message_view_ ?
          message_view_->GetSizeForWidthAndLines(width, limit).height() : 0;
 }
 
 }  // namespace message_center