Telemetry on android: improves RawDisplayFrameRateMeasurement.

tools/telemetry/telemetry/core/chrome/platform.py

Index: tools/telemetry/telemetry/core/chrome/platform.py
diff --git a/tools/telemetry/telemetry/core/chrome/platform.py b/tools/telemetry/telemetry/core/chrome/platform.py
index d7bb31359781fb0c3a9f61a1611f7e1cf262b430..ec7623257f8785e40e6ae606f96464b568228dd9 100644
--- a/tools/telemetry/telemetry/core/chrome/platform.py
+++ b/tools/telemetry/telemetry/core/chrome/platform.py
@@ -16,14 +16,36 @@ class Platform(object):
     """Platforms may be able to collect GL surface stats."""
     return self._platform_backend.IsRawDisplayFrameRateSupported()
 
-  def StartRawDisplayFrameRateMeasurement(self, trace_tag):
+  def StartRawDisplayFrameRateMeasurement(self):
     """Start measuring GL surface stats."""
-    return self._platform_backend.StartRawDisplayFrameRateMeasurement(trace_tag)
+    return self._platform_backend.StartRawDisplayFrameRateMeasurement()
 
   def StopRawDisplayFrameRateMeasurement(self):
-    """Stop measuring GL surface stats and print results."""
+    """Stop measuring GL surface stats."""
     return self._platform_backend.StopRawDisplayFrameRateMeasurement()
 
+  class RawDisplayFrameRateMeasurement(object):
+    def __init__(self, name, value, unit):
+      self._name = name
+      self._value = value
+      self._unit = unit
+
+    @property
+    def name(self):
+      return self._name
+
+    @property
+    def value(self):
+      return self._value
+
+    @property
+    def unit(self):
+      return self._unit
+
+  def GetRawDisplayFrameRateMeasurements(self):
+    """Returns a list of RawDisplayFrameRateMeasurement."""
+    return self._platform_backend.GetRawDisplayFrameRateMeasurements()
+
   def SetFullPerformanceModeEnabled(self, enabled):
     """Platforms may tweak their CPU governor, system status, etc.