Enable presubmit pylint in build/android.

build/android/pylib/perf/thermal_throttle.py

Index: build/android/pylib/perf/thermal_throttle.py
diff --git a/build/android/pylib/perf/thermal_throttle.py b/build/android/pylib/perf/thermal_throttle.py
index 6a47319f9838a3c2f8ce5527980b250cc74a659c..58281122081139c2484c58e925b680c201d3e2fd 100644
--- a/build/android/pylib/perf/thermal_throttle.py
+++ b/build/android/pylib/perf/thermal_throttle.py
@@ -17,13 +17,16 @@ class OmapThrottlingDetector(object):
   def __init__(self, adb):
     self._adb = adb
 
-  def BecameThrottled(self, log_line):
+  @staticmethod
+  def BecameThrottled(log_line):
     return 'omap_thermal_throttle' in log_line
 
-  def BecameUnthrottled(self, log_line):
+  @staticmethod
+  def BecameUnthrottled(log_line):
     return 'omap_thermal_unthrottle' in log_line
 
-  def GetThrottlingTemperature(self, log_line):
+  @staticmethod
+  def GetThrottlingTemperature(log_line):
     if 'throttle_delayed_work_fn' in log_line:
       return float([s for s in log_line.split() if s.isdigit()][0]) / 1000.0
 
@@ -41,16 +44,20 @@ class ExynosThrottlingDetector(object):
   def __init__(self, adb):
     pass
 
-  def BecameThrottled(self, log_line):
+  @staticmethod
+  def BecameThrottled(log_line):
     return 'exynos_tmu: Throttling interrupt' in log_line
 
-  def BecameUnthrottled(self, log_line):
+  @staticmethod
+  def BecameUnthrottled(log_line):
     return 'exynos_thermal_unthrottle: not throttling' in log_line
 
-  def GetThrottlingTemperature(self, log_line):
+  @staticmethod
+  def GetThrottlingTemperature(_log_line):
     return None
 
-  def GetCurrentTemperature(self):
+  @staticmethod
+  def GetCurrentTemperature():
     return None