telemetry: Smoothness metric clean-up.

This patch removes compatibility with none-Chrome browsers and generally
cleans up metrics/smoothness.py

R=qyearsley@chromium.org,dominikg@chromium.org,tonyg@chromium.org
BUG=305347

Review URL: https://codereview.chromium.org/27165005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229602 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 9 insertions, 18 deletions

diff --git a/tools/perf/metrics/rendering_stats.py b/tools/perf/metrics/rendering_stats.py
index da1713d..9bde896 100644
--- a/tools/perf/metrics/rendering_stats.py
+++ b/tools/perf/metrics/rendering_stats.py
@@ -4,9 +4,11 @@
 
 from operator import attrgetter
 
+RENDER_PROCESS_MARKER = 'RenderProcessMarker'
+
+
 class RenderingStats(object):
-  def __init__(self, render_process_marker, timeline_markers,
-               rendering_stats_deltas, used_gpu_benchmarking):
+  def __init__(self, render_process_marker, timeline_markers):
     """
     Utility class for extracting rendering statistics from the timeline (or
     other loggin facilities), and providing them in a common format to classes
@@ -34,22 +36,11 @@ class RenderingStats(object):
     self.rasterize_time = []
     self.rasterized_pixel_count = []
 
-    if used_gpu_benchmarking:
-      for marker in timeline_markers:
-        self.initMainThreadStatsFromTimeline(marker.start,
-                                             marker.start+marker.duration)
-        self.initImplThreadStatsFromTimeline(marker.start,
-                                             marker.start+marker.duration)
-    else:
-      self.initFrameCountsFromRenderingStats(rendering_stats_deltas)
-
-  def initFrameCountsFromRenderingStats(self, rs):
-    # TODO(ernstm): remove numFramesSentToScreen when RenderingStats
-    # cleanup CL was picked up by the reference build.
-    if 'frameCount' in rs:
-      self.frame_count = rs.get('frameCount', 0)
-    else:
-      self.frame_count = rs.get('numFramesSentToScreen', 0)
+    for marker in timeline_markers:
+      self.initMainThreadStatsFromTimeline(marker.start,
+                                           marker.start+marker.duration)
+      self.initImplThreadStatsFromTimeline(marker.start,
+                                           marker.start+marker.duration)
 
   def initMainThreadStatsFromTimeline(self, start, end):
     # TODO(ernstm): Remove when CL with new event names was rolled into