Allow constexpr variables of TimeDelta type.

components/feedback/feedback_data_unittest.cc

 // 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.
 
 #include "components/feedback/feedback_data.h"
 
 #include <memory>
 #include <set>
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "components/feedback/feedback_uploader.h"
 #include "components/feedback/feedback_uploader_factory.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/prefs/testing_pref_service.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/test/test_browser_context.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 const char kHistograms[] = "";
 const char kImageData[] = "";
 const char kFileData[] = "";
 
-const base::TimeDelta kRetryDelayForTest =
-    base::TimeDelta::FromMilliseconds(100);
-
 using content::BrowserThread;
 
 class MockUploader : public feedback::FeedbackUploader, public KeyedService {
  public:
   MockUploader(content::BrowserContext* context)
       : FeedbackUploader(context ? context->GetPath() : base::FilePath(),
                          BrowserThread::GetBlockingPool()) {}
 
   MOCK_METHOD1(DispatchReport, void(const std::string&));
 };
@@ skipping 62 matching lines @@
 TEST_F(FeedbackDataTest, ReportSending) {
   data_->SetAndCompressHistograms(MakeScoped(kHistograms));
   data_->set_image(MakeScoped(kImageData));
   data_->AttachAndCompressFileData(MakeScoped(kFileData));
   Send();
   RunMessageLoop();
   EXPECT_TRUE(data_->IsDataComplete());
 }
 
 }  // namespace feedback