Update thumbnail_database to store times using ToInternalValue()

chrome/common/thumbnail_score.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 "chrome/common/thumbnail_score.h"
 
 #include "base/logging.h"
 #include "base/stringprintf.h"
 
 using base::Time;
@@ skipping 44 matching lines @@
       at_top(top),
       load_completed(false),
       time_at_snapshot(time),
       redirect_hops_from_dest(0) {
 }
 
 ThumbnailScore::~ThumbnailScore() {
 }
 
 bool ThumbnailScore::Equals(const ThumbnailScore& rhs) const {
-  // When testing equality we use ToTimeT() because that's the value
-  // stuck in the SQL database, so we need to test equivalence with
-  // that lower resolution.
   return boring_score == rhs.boring_score &&
       good_clipping == rhs.good_clipping &&
       at_top == rhs.at_top &&
-      time_at_snapshot.ToTimeT() == rhs.time_at_snapshot.ToTimeT() &&
+      time_at_snapshot == rhs.time_at_snapshot &&
       redirect_hops_from_dest == rhs.redirect_hops_from_dest;
 }
 
 std::string ThumbnailScore::ToString() const {
   return StringPrintf("boring_score: %f, at_top %d, good_clipping %d, "
                       "load_completed: %d, "
                       "time_at_snapshot: %f, redirect_hops_from_dest: %d",
                       boring_score,
                       at_top,
                       good_clipping,
@@ skipping 51 matching lines @@
 bool ThumbnailScore::ShouldConsiderUpdating() {
   const TimeDelta time_elapsed = Time::Now() - time_at_snapshot;
   if (time_elapsed < TimeDelta::FromDays(kUpdateThumbnailTimeDays) &&
       good_clipping && at_top && load_completed) {
     // The current thumbnail is new and has good properties.
     return false;
   }
   // The current thumbnail should be updated.
   return true;
 }