chrome/browser/memory: Change auto to not deduce raw pointers.

chrome/browser/memory/tab_manager_web_contents_data_unittest.cc

 // Copyright 2015 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/memory/tab_manager_web_contents_data.h"
 
 #include "base/test/histogram_tester.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
 #include "chrome/test/base/testing_profile.h"
@@ skipping 76 matching lines @@
 
 TEST_F(TabManagerWebContentsDataTest, LastInactiveTime) {
   EXPECT_EQ(base::TimeTicks::UnixEpoch(), tab_data()->LastInactiveTime());
   auto now = base::TimeTicks::Now();
   tab_data()->SetLastInactiveTime(now);
   EXPECT_EQ(now, tab_data()->LastInactiveTime());
 }
 
 TEST_F(TabManagerWebContentsDataTest, CopyState) {
   std::unique_ptr<WebContents> web_contents2;
-  auto tab_data2 = CreateWebContentsAndTabData(&web_contents2);
+  auto* tab_data2 = CreateWebContentsAndTabData(&web_contents2);
 
   EXPECT_EQ(tab_data()->tab_data_, tab_data2->tab_data_);
   tab_data()->IncrementDiscardCount();
   tab_data()->SetDiscardState(true);
   EXPECT_NE(tab_data()->tab_data_, tab_data2->tab_data_);
 
   TabManager::WebContentsData::CopyState(tab_data()->web_contents(),
                                          tab_data2->web_contents());
   EXPECT_EQ(tab_data()->tab_data_, tab_data2->tab_data_);
   EXPECT_EQ(tab_data()->test_tick_clock_, tab_data2->test_tick_clock_);
@@ skipping 90 matching lines @@
   test_clock().Advance(base::TimeDelta::FromSeconds(7));
   tab_data()->SetDiscardState(false);
 
   EXPECT_EQ(1,
             histograms.GetTotalCountsForPrefix(kHistogramName).begin()->second);
 
   histograms.ExpectBucketCount(kHistogramName, 12000, 1);
 }
 
 }  // namespace memory