Marked most disabled benchmarks with the correct bugs.

tools/perf/benchmarks/gpu_times.py

Index: tools/perf/benchmarks/gpu_times.py
diff --git a/tools/perf/benchmarks/gpu_times.py b/tools/perf/benchmarks/gpu_times.py
index eaeb9729f62f39eea38f34a4b54ce4c7ec5df1c4..f8d041346b0597bdeb3e2d3e4cb4caee3775f17c 100644
--- a/tools/perf/benchmarks/gpu_times.py
+++ b/tools/perf/benchmarks/gpu_times.py
@@ -27,7 +27,7 @@ class _GPUTimes(benchmark.Benchmark):
         get_metrics_from_flags_callback=_GetGPUTimelineMetric)
 
 
-@benchmark.Disabled
+@benchmark.Disabled  # http://crbug.com/455292
 class GPUTimesKeyMobileSites(_GPUTimes):
   """Measures GPU timeline metric on key mobile sites."""
   page_set = page_sets.KeyMobileSitesSmoothPageSet
@@ -36,7 +36,7 @@ class GPUTimesKeyMobileSites(_GPUTimes):
   def Name(cls):
     return 'gpu_times.key_mobile_sites_smooth'
 
-@benchmark.Disabled
+@benchmark.Disabled  # http://crbug.com/455292
 class GPUTimesGpuRasterizationKeyMobileSites(_GPUTimes):
   """Measures GPU timeline metric on key mobile sites with GPU rasterization.
   """
@@ -48,7 +48,7 @@ class GPUTimesGpuRasterizationKeyMobileSites(_GPUTimes):
   def Name(cls):
     return 'gpu_times.gpu_rasterization.key_mobile_sites_smooth'
 
-@benchmark.Disabled
+@benchmark.Disabled  # http://crbug.com/453131, http://crbug.com/455292
 class GPUTimesTop25Sites(_GPUTimes):
   """Measures GPU timeline metric for the top 25 sites."""
   page_set = page_sets.Top25SmoothPageSet
@@ -57,7 +57,7 @@ class GPUTimesTop25Sites(_GPUTimes):
   def Name(cls):
     return 'gpu_times.top_25_smooth'
 
-@benchmark.Disabled
+@benchmark.Disabled  # http://crbug.com/455292
 class GPUTimesGpuRasterizationTop25Sites(_GPUTimes):
   """Measures GPU timeline metric for the top 25 sites with GPU rasterization.
   """