Unlock mouse on Render widget host view close

content/browser/renderer_host/render_widget_host_view_mac.mm

 // 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 "content/browser/renderer_host/render_widget_host_view_mac.h"
 
 #include <QuartzCore/QuartzCore.h>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
@@ skipping 231 matching lines @@
       compositing_surface_(gfx::kNullPluginWindow) {
   // |cocoa_view_| owns us and we will be deleted when |cocoa_view_|
   // goes away.  Since we autorelease it, our caller must put
   // |GetNativeView()| into the view hierarchy right after calling us.
   cocoa_view_ = [[[RenderWidgetHostViewCocoa alloc]
                   initWithRenderWidgetHostViewMac:this] autorelease];
   render_widget_host_->SetView(this);
 }
 
 RenderWidgetHostViewMac::~RenderWidgetHostViewMac() {
+  UnlockMouse();
 }
 
 void RenderWidgetHostViewMac::SetDelegate(
     RenderWidgetHostViewMacDelegate* delegate) {
   [cocoa_view_ setRWHVDelegate:delegate];
 }
 
 namespace render_widget_host_view_mac {
 RenderWidgetHostView *CreateRenderWidgetHostView(RenderWidgetHost *widget) {
     return new RenderWidgetHostViewMac(widget);
@@ skipping 2504 matching lines @@
   if (!string) return NO;
 
   // If the user is currently using an IME, confirm the IME input,
   // and then insert the text from the service, the same as TextEdit and Safari.
   [self confirmComposition];
   [self insertText:string];
   return YES;
 }
 
 @end