Remove qualcomm from ToughWebglPage skipped_gpus

Historically, we haven't been running these WebGL perf tests
on our Android perf bots (which are all Qualcomm devices).
This change should hopefully allow us to start tracking WebGL
perf on mobile.

Bug: 867368
Change-Id: I8e409d649f6238094928dfdac4cc6f7d2c444ca5
Reviewed-on: https://chromium-review.googlesource.com/1170032Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#582326}

tools/perf/page_sets/rendering/tough_webgl_cases.py

@@ -25,8 +25,7 @@ class ToughWebglPage(rendering_story.RenderingStory):
   @property
   def skipped_gpus(self):
     # crbug.com/462729
-    return ['arm', 'broadcom', 'hisilicon', 'imagination', 'qualcomm',
-            'vivante']
+    return ['arm', 'broadcom', 'hisilicon', 'imagination', 'vivante']
 
   def RunNavigateSteps(self, action_runner):
     super(ToughWebglPage, self).RunNavigateSteps(action_runner)