content: Rename raster threads to worker threads.

tools/perf/metrics/timeline.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 import collections
 
 from telemetry.util.statistics import DivideIfPossibleOrZero
 from telemetry.value import scalar
 from telemetry.web_perf.metrics import timeline_based_metric
 
 
@@ skipping 58 matching lines @@
 # having several process configurations (in-proc-gpu/single-proc).
 # Since we can't isolate renderer threads in single-process mode, we
 # always sum renderer-process threads' times. We also sum all io-threads
 # for simplicity.
 TimelineThreadCategories =  {
   "Chrome_InProcGpuThread": "GPU",
   "CrGpuMain"             : "GPU",
   "AsyncTransferThread"   : "GPU_transfer",
   "CrBrowserMain"         : "browser",
   "Browser Compositor"    : "browser",
+  "Browser Worker"        : "browser",
   "CrRendererMain"        : "renderer_main",
   "Compositor"            : "renderer_compositor",
+  "Worker"                : "raster",
   "IOThread"              : "IO",
-  "CompositorTileWorker"  : "raster",
   "DummyThreadName1"      : "other",
   "DummyThreadName2"      : "total_fast_path",
   "DummyThreadName3"      : "total_all"
 }
 
-_MatchBySubString = ["IOThread", "CompositorTileWorker"]
+_MatchBySubString = ["IOThread", "Worker"]
 
 AllThreads = TimelineThreadCategories.values()
 NoThreads = []
 FastPathThreads = ["GPU", "renderer_compositor", "browser", "IO"]
 
 ReportMainThreadOnly = ["renderer_main"]
 ReportSilkDetails = ["renderer_main"]
 
 # TODO(epenner): Thread names above are likely fairly stable but trace names
 # could change. We should formalize these traces to keep this robust.
@@ skipping 202 matching lines @@
           thread_results.AddDetailedResults(
               num_intervals, interval_name, results)
 
     # Report mean frame time for the frame rate thread. We could report other
     # frame rates (eg. renderer_main) but this might get confusing.
     mean_frame_time = Rate(frame_rate_thread.all_action_time, num_frames)
     results.AddValue(scalar.ScalarValue(
         results.current_page,
         ThreadMeanFrameTimeResultName(FrameTraceThreadName),
         'ms', mean_frame_time))