Created min size for print preview dialog and modified to allow the

components/web_modal/single_web_contents_dialog_manager.h

 // 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.
 
 #ifndef COMPONENTS_WEB_MODAL_SINGLE_WEB_CONTENTS_DIALOG_MANAGER_H_
 #define COMPONENTS_WEB_MODAL_SINGLE_WEB_CONTENTS_DIALOG_MANAGER_H_
 
 #include "base/macros.h"
 #include "ui/gfx/native_widget_types.h"
 
 namespace content {
 class WebContents;
 }  // namespace content
 
 namespace web_modal {
 
 class WebContentsModalDialogHost;
 
 // Interface from SingleWebContentsDialogManager to
 // WebContentsModalDialogManager.
 class SingleWebContentsDialogManagerDelegate {
  public:
   SingleWebContentsDialogManagerDelegate() {}
   virtual ~SingleWebContentsDialogManagerDelegate() {}
 
   virtual content::WebContents* GetWebContents() const = 0;
 
-  // Notify the delegate that the dialog is closing. The native
+  // Notifies the delegate that the dialog is closing. The native
   // manager will be deleted before the end of this call.
   virtual void WillClose(gfx::NativeWindow dialog) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SingleWebContentsDialogManagerDelegate);
 };
 
 // Provides an interface for platform-specific UI implementation for the web
 // contents modal dialog. Each object will manage a single dialog window
 // during its lifecycle.
@@ skipping 32 matching lines @@
  protected:
   SingleWebContentsDialogManager() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SingleWebContentsDialogManager);
 };
 
 }  // namespace web_modal
 
 #endif  // COMPONENTS_WEB_MODAL_SINGLE_WEB_CONTENTS_DIALOG_MANAGER_H_