Start consolidating cross-port file selection code into ui/base/dialogs.

chrome/browser/extensions/api/file_system/file_system_api.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/extensions/api/file_system/file_system_api.h"
 
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "chrome/browser/extensions/shell_window_registry.h"
 #include "chrome/browser/platform_util.h"
+#include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/common/extensions/api/file_system.h"
 #include "chrome/common/extensions/permissions/api_permission.h"
 #include "content/public/browser/child_process_security_policy.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/isolated_context.h"
 
@@ skipping 176 matching lines @@
     : public SelectFileDialog::Listener {
  public:
   FilePicker(FileSystemChooseFileFunction* function,
              content::WebContents* web_contents,
              const FilePath& suggested_path,
              SelectFileDialog::Type picker_type,
              EntryType entry_type)
       : suggested_path_(suggested_path),
         entry_type_(entry_type),
         function_(function) {
-    select_file_dialog_ = SelectFileDialog::Create(this);
+    select_file_dialog_ = SelectFileDialog::Create(
+        this, new ChromeSelectFilePolicy(web_contents));
     SelectFileDialog::FileTypeInfo file_type_info;
     FilePath::StringType extension = suggested_path.Extension();
     if (!extension.empty()) {
       extension.erase(extension.begin());  // drop the .
       file_type_info.extensions.resize(1);
       file_type_info.extensions[0].push_back(extension);
     }
     file_type_info.include_all_files = true;
     gfx::NativeWindow owning_window = web_contents ?
         platform_util::GetTopLevel(web_contents->GetNativeView()) : NULL;
@@ skipping 12 matching lines @@
                     FileSelectionCanceled,
                 base::Unretained(this), static_cast<void*>(NULL)));
       }
       return;
     }
 
     select_file_dialog_->SelectFile(picker_type,
                                     string16(),
                                     suggested_path,
                                     &file_type_info, 0, FILE_PATH_LITERAL(""),
-                                    web_contents, owning_window, NULL);
+                                    owning_window, NULL);
   }
 
   virtual ~FilePicker() {}
 
  private:
   // SelectFileDialog::Listener implementation.
   virtual void FileSelected(const FilePath& path,
                             int index,
                             void* params) OVERRIDE {
     function_->FileSelected(path, entry_type_);
@@ skipping 94 matching lines @@
 
   if (entry_type == WRITABLE && !HasFileSystemWritePermission()) {
     error_ = kRequiresFileSystemWriteError;
     return false;
   }
 
   return ShowPicker(FilePath(), picker_type, entry_type);
 }
 
 }  // namespace extensions