MacViews: Implement SetCursor

ui/views/cocoa/views_nswindow_delegate.mm

 // 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.
 
 #import "ui/views/cocoa/views_nswindow_delegate.h"
 
 #include "base/logging.h"
 #import "ui/views/cocoa/bridged_content_view.h"
 #import "ui/views/cocoa/bridged_native_widget.h"
 #include "ui/views/widget/native_widget_mac.h"
 
 @implementation ViewsNSWindowDelegate
 
 - (id)initWithBridgedNativeWidget:(views::BridgedNativeWidget*)parent {
   DCHECK(parent);
   if ((self = [super init])) {
     parent_ = parent;
   }
   return self;
 }
 
 - (views::NativeWidgetMac*)nativeWidgetMac {
   return parent_->native_widget_mac();
 }
 
+- (NSCursor*)cursor {
+  return cursor_.get();
+}
+
+- (void)setCursor:(NSCursor*)newCursor {
+  if (cursor_.get() == newCursor)
+    return;
+
+  cursor_.reset([newCursor retain]);
+  [parent_->ns_window() resetCursorRects];
+}
+
 - (void)onWindowOrderWillChange:(NSWindowOrderingMode)orderingMode {
   parent_->OnVisibilityChangedTo(orderingMode != NSWindowOut);
 }
 
 - (void)onWindowOrderChanged:(NSNotification*)notification {
   parent_->OnVisibilityChanged();
 }
 
 - (void)onWindowWillDisplay {
   parent_->OnVisibilityChangedTo(true);
@@ skipping 55 matching lines @@
 
 - (void)windowWillExitFullScreen:(NSNotification*)notification {
   parent_->OnFullscreenTransitionStart(false);
 }
 
 - (void)windowDidExitFullScreen:(NSNotification*)notification {
   parent_->OnFullscreenTransitionComplete(false);
 }
 
 @end