enable ThermalManager on Android

tools/ThermalManager.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "ThermalManager.h"
 
 #include "SkOSFile.h"
@@ skipping 77 matching lines @@
 
 ThermalManager::TripPoint::TripPoint(SkString thermalZoneRoot, SkString pointName,
                                      int32_t threshold)
     : fThermalZoneRoot(thermalZoneRoot)
     , fPointName(pointName) {
     SkString fullPath(thermalZoneRoot);
     fullPath.appendf("/%s", pointName.c_str());
     fPoint = OpenFileAndReadInt32(fullPath.c_str());
     fBase = GetTemp(fThermalZoneRoot);
     fThreshold = threshold;
-    fDisabled = fBase >= fPoint + fThreshold;  // We disable any trip point which start off
+    fDisabled = fBase + fThreshold >= fPoint;  // We disable any trip point which start off
                                                // triggered
     if (!fDisabled) {
         SkDebugf("Trip point %s base - %d trip point-%d\n", fullPath.c_str(),
                  fBase, fPoint);
     }
 }
 
 bool ThermalManager::TripPoint::willTrip() {
     int32_t currentTemp = GetTemp(fThermalZoneRoot);
     bool wouldTrip = !fDisabled && currentTemp + fThreshold >= fPoint;
 
     if (wouldTrip) {
         SkDebugf("%s/%s would trip {%d,%d,%d,%d}\n", fThermalZoneRoot.c_str(),
                  fPointName.c_str(), fBase, currentTemp, fPoint, fThreshold);
     }
     return wouldTrip;
 }
 
 #endif