Make callers of FromUTC(Local)Exploded in ppapi/ use new time API.

ppapi/shared_impl/time_conversion.cc

 // Copyright (c) 2011 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 "ppapi/shared_impl/time_conversion.h"
 
 namespace ppapi {
 
 PP_Time TimeToPPTime(base::Time t) { return t.ToDoubleT(); }
 
@@ skipping 14 matching lines @@
 
 double PPGetLocalTimeZoneOffset(const base::Time& time) {
   // Explode it to local time and then unexplode it as if it were UTC. Also
   // explode it to UTC and unexplode it (this avoids mismatching rounding or
   // lack thereof). The time zone offset is their difference.
   base::Time::Exploded exploded = {0};
   base::Time::Exploded utc_exploded = {0};
   time.LocalExplode(&exploded);
   time.UTCExplode(&utc_exploded);
   if (exploded.HasValidValues() && utc_exploded.HasValidValues()) {
-    base::Time adj_time = base::Time::FromUTCExploded(exploded);
-    base::Time cur = base::Time::FromUTCExploded(utc_exploded);
-    return (adj_time - cur).InSecondsF();
+    base::Time adj_time;
+    if (base::Time::FromUTCExploded(exploded, &adj_time)) {
+      base::Time cur;
+      if (base::Time::FromUTCExploded(utc_exploded, &cur))
+        return (adj_time - cur).InSecondsF();
+    }
   }
   return 0.0;
 }
 
 }  // namespace ppapi