Telemetry: Implement idle wakeups counting on Android.

tools/telemetry/telemetry/core/platform/__init__.py

Index: tools/telemetry/telemetry/core/platform/__init__.py
diff --git a/tools/telemetry/telemetry/core/platform/__init__.py b/tools/telemetry/telemetry/core/platform/__init__.py
index e11d51f99e8572479057a82ad51606cf4e27ee59..848936db6b3f81f0d35fd301f52cd71a696085f0 100644
--- a/tools/telemetry/telemetry/core/platform/__init__.py
+++ b/tools/telemetry/telemetry/core/platform/__init__.py
@@ -263,13 +263,18 @@ class Platform(object):
     """
     return self._platform_backend.CanMonitorPower()
 
+  def CanMeasureIdleWakeUps(self):
+    """Returns True iff idle wakeups can be monitored via
+    StartMeasuringIdleWakeUps() and StopMeasuringIdleWakeUps().
+    """
+    return self._platform_backend.CanMeasureIdleWakeUps()
+
   def CanMeasurePerApplicationPower(self):
     """Returns True if the power monitor can measure power for the target
     application in isolation. False if power measurement is for full system
     energy consumption."""
     return self._platform_backend.CanMeasurePerApplicationPower()
 
-
   def StartMonitoringPower(self, browser):
     """Starts monitoring power utilization statistics.
 
@@ -322,3 +327,13 @@ class Platform(object):
       }
     """
     return self._platform_backend.StopMonitoringPower()
+
+  def StartMeasuringIdleWakeUps(self):
+    """Starts monitoring idle wakeups."""
+    assert self._platform_backend.CanMeasureIdleWakeUps()
+    self._platform_backend.StartMeasuringIdleWakeUps()
+
+  def StopMeasuringIdleWakeUps(self):
+    """Stops monitoring idle wakeups."""
+    assert self._platform_backend.CanMeasureIdleWakeUps()
+    self._platform_backend.StopMeasuringIdleWakeUps()