Fix GCC build for target 'all'

chrome/browser/ui/views/webshare/webshare_target_picker_view.h

 // Copyright 2017 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 CHROME_BROWSER_UI_VIEWS_WEBSHARE_WEBSHARE_TARGET_PICKER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_WEBSHARE_WEBSHARE_TARGET_PICKER_VIEW_H_
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/ui/browser_dialogs.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/views/controls/table/table_view_observer.h"
 #include "ui/views/window/dialog_delegate.h"
 
 class GURL;
 class TargetPickerTableModel;
+class WebShareTargetPickerViewTest;
 
 namespace views {
 class TableView;
 }
 
-namespace {
-class WebShareTargetPickerViewTest;
-}
-
 // Dialog that presents the user with a list of share target apps. Allows the
 // user to pick one target to be opened and have data passed to it.
 //
 // NOTE: This dialog has *not* been UI-reviewed, and is being used by an
 // in-development feature (Web Share) behind a runtime flag. It should not be
 // used by any released code until going through UI review.
 class WebShareTargetPickerView : public views::DialogDelegateView,
                                  public views::TableViewObserver {
  public:
   // |targets| is a list of app title and manifest URL pairs that will be shown
@@ skipping 31 matching lines @@
 
   const std::vector<std::pair<base::string16, GURL>> targets_;
   std::unique_ptr<TargetPickerTableModel> table_model_;
 
   base::Callback<void(base::Optional<std::string>)> close_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(WebShareTargetPickerView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_WEBSHARE_WEBSHARE_TARGET_PICKER_VIEW_H_