Fix more disabled MSVC warnings, base/ edition.

base/test/trace_event_analyzer_unittest.cc

Index: base/test/trace_event_analyzer_unittest.cc
diff --git a/base/test/trace_event_analyzer_unittest.cc b/base/test/trace_event_analyzer_unittest.cc
index a17c7e5d436b5593fbdf9c523573febd91f5d241..56045089222500e80848267b30325b81d9b23040 100644
--- a/base/test/trace_event_analyzer_unittest.cc
+++ b/base/test/trace_event_analyzer_unittest.cc
@@ -399,7 +399,7 @@ TEST_F(TraceEventAnalyzerTest, BeginEndDuration) {
   const base::TimeDelta kSleepTime = base::TimeDelta::FromMilliseconds(200);
   // We will search for events that have a duration of greater than 90% of the
   // sleep time, so that there is no flakiness.
-  int duration_cutoff_us = (kSleepTime.InMicroseconds() * 9) / 10;
+  int64 duration_cutoff_us = (kSleepTime.InMicroseconds() * 9) / 10;
 
   BeginTracing();
   {
@@ -427,7 +427,8 @@ TEST_F(TraceEventAnalyzerTest, BeginEndDuration) {
   TraceEventVector found;
   analyzer->FindEvents(
       Query::MatchBeginWithEnd() &&
-      Query::EventDuration() > Query::Int(duration_cutoff_us) &&
+      Query::EventDuration() >
+          Query::Int(static_cast<int>(duration_cutoff_us)) &&
       (Query::EventCategory() == Query::String("cat1") ||
        Query::EventCategory() == Query::String("cat2") ||
        Query::EventCategory() == Query::String("cat3")),
@@ -444,7 +445,7 @@ TEST_F(TraceEventAnalyzerTest, CompleteDuration) {
   const base::TimeDelta kSleepTime = base::TimeDelta::FromMilliseconds(200);
   // We will search for events that have a duration of greater than 90% of the
   // sleep time, so that there is no flakiness.
-  int duration_cutoff_us = (kSleepTime.InMicroseconds() * 9) / 10;
+  int64 duration_cutoff_us = (kSleepTime.InMicroseconds() * 9) / 10;
 
   BeginTracing();
   {
@@ -467,7 +468,8 @@ TEST_F(TraceEventAnalyzerTest, CompleteDuration) {
 
   TraceEventVector found;
   analyzer->FindEvents(
-      Query::EventCompleteDuration() > Query::Int(duration_cutoff_us) &&
+      Query::EventCompleteDuration() >
+          Query::Int(static_cast<int>(duration_cutoff_us)) &&
       (Query::EventCategory() == Query::String("cat1") ||
        Query::EventCategory() == Query::String("cat2") ||
        Query::EventCategory() == Query::String("cat3")),