Fix GCC build for target 'all'

chrome/browser/ui/views/webshare/webshare_target_picker_view_unittest.cc

 // 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.
 
 #include "chrome/browser/ui/views/webshare/webshare_target_picker_view.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/optional.h"
 #include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/views/chrome_constrained_window_views_client.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
 #include "components/constrained_window/constrained_window_views.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/views/controls/table/table_view.h"
 #include "ui/views/test/views_test_base.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/window/dialog_client_view.h"
 #include "ui/views/window/dialog_delegate.h"
 #include "url/gurl.h"
 
-namespace {
-
 class WebShareTargetPickerViewTest : public views::ViewsTestBase {
  public:
   WebShareTargetPickerViewTest() {}
 
   void SetUp() override {
     ViewsTestBase::SetUp();
 
     SetConstrainedWindowViewsClient(CreateChromeConstrainedWindowViewsClient());
 
     // Create the parent widget.
@@ skipping 123 matching lines @@
   base::RunLoop run_loop;
   SetQuitClosure(run_loop.QuitClosure());
 
   view()->OnDoubleClick();
 
   run_loop.Run();
 
   EXPECT_EQ(base::Optional<std::string>("https://appone.com/path/bits"),
             result());
 }
-
-}  // namespace