Extract minimal RenderViewHost interface for embedders, leaving

chrome/browser/file_select_helper.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 "chrome/browser/file_select_helper.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_util.h"
@@ skipping 315 matching lines @@
       break;
     default:
       dialog_type_ = SelectFileDialog::SELECT_OPEN_FILE;  // Prevent warning.
       NOTREACHED();
   }
   FilePath default_file_name = params.default_file_name;
   if (default_file_name.empty())
     default_file_name = profile_->last_selected_directory();
 
   gfx::NativeWindow owning_window =
-      platform_util::GetTopLevel(render_view_host_->view()->GetNativeView());
+      platform_util::GetTopLevel(render_view_host_->GetView()->GetNativeView());
 
   select_file_dialog_->SelectFile(
       dialog_type_,
       params.title,
       default_file_name,
       select_file_types_.get(),
       select_file_types_.get() ? 1 : 0,  // 1-based index.
       FILE_PATH_LITERAL(""),
       web_contents_,
       owning_window,
@@ skipping 47 matching lines @@
       DCHECK(content::Source<WebContents>(source).ptr() == web_contents_);
       web_contents_ = NULL;
       break;
     }
 
     default:
       NOTREACHED();
   }
 }