Fix and enable lint checks.

fpdfsdk/src/javascript/JS_Value.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "fpdfsdk/src/javascript/JS_Value.h"
 
 #include <time.h>
 #include <algorithm>
@@ skipping 660 matching lines @@
 int _Day(double t) {
   return (int)FXSYS_floor(t / 86400000);
 }
 
 int _YearFromTime(double t) {
   // estimate the time.
   int y = 1970 + static_cast<int>(t / (365.2425 * 86400000));
   if (_TimeFromYear(y) <= t) {
     while (_TimeFromYear(y + 1) <= t)
       y++;
-  } else
+  } else {
     while (_TimeFromYear(y) > t)
       y--;
+  }
   return y;
 }
 
 int _DayWithinYear(double t) {
   int year = _YearFromTime(t);
   int day = _Day(t);
   return day - _DayFromYear(year);
 }
 
 int _MonthFromTime(double t) {
@@ skipping 205 matching lines @@
   for (int i = 0; i < nKeywords; ++i) {
     const wchar_t* property = va_arg(ap, const wchar_t*);
     v8::Local<v8::Value> v8Value =
         FXJS_GetObjectElement(pRuntime->GetIsolate(), pObj, property);
     if (!v8Value->IsUndefined())
       result[i] = CJS_Value(pRuntime, v8Value, CJS_Value::VT_unknown);
   }
   va_end(ap);
   return result;
 }