Revert of Change WebContents::last_active_time_ to Time instead of Timeticks.

content/browser/web_contents/web_contents_impl_unittest.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 "base/command_line.h"
 #include "base/logging.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/browser/frame_host/cross_site_transferring_request.h"
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/frame_host/navigation_entry_impl.h"
@@ skipping 2552 matching lines @@
   EXPECT_TRUE(view->is_occluded());
 }
 
 // Tests that GetLastActiveTime starts with a real, non-zero time and updates
 // on activity.
 TEST_F(WebContentsImplTest, GetLastActiveTime) {
   // The WebContents starts with a valid creation time.
   EXPECT_FALSE(contents()->GetLastActiveTime().is_null());
 
   // Reset the last active time to a known-bad value.
-  contents()->last_active_time_ = base::Time();
+  contents()->last_active_time_ = base::TimeTicks();
   ASSERT_TRUE(contents()->GetLastActiveTime().is_null());
 
   // Simulate activating the WebContents. The active time should update.
   contents()->WasShown();
   EXPECT_FALSE(contents()->GetLastActiveTime().is_null());
 }
 
 class ContentsZoomChangedDelegate : public WebContentsDelegate {
  public:
   ContentsZoomChangedDelegate() :
@@ skipping 527 matching lines @@
 
   // Crash the renderer.
   contents()->GetMainFrame()->GetProcess()->SimulateCrash();
 
   // Verify that all the power save blockers have been released.
   EXPECT_FALSE(contents()->has_video_power_save_blocker_for_testing());
   EXPECT_FALSE(contents()->has_audio_power_save_blocker_for_testing());
 }
 
 }  // namespace content