Disable webgl_infobar_browsertest on XP bots.

chrome/test/gpu/webgl_infobar_browsertest.cc

Index: chrome/test/gpu/webgl_infobar_browsertest.cc
===================================================================
--- chrome/test/gpu/webgl_infobar_browsertest.cc	(revision 181512)
+++ chrome/test/gpu/webgl_infobar_browsertest.cc	(working copy)
@@ -64,8 +64,7 @@
 };
 
 IN_PROC_BROWSER_TEST_F(WebGLInfobarTest, ContextLossRaisesInfobar) {
-  // crbug.com/162982, flaky on Mac Retina Release.
-  if (GPUTestBotConfig::CurrentConfigMatches("MAC NVIDIA 0x0fd5 RELEASE"))
+  if (GPUTestBotConfig::CurrentConfigMatches("XP"))
     return;
 
   // Load page and wait for it to load.
@@ -90,8 +89,7 @@
 }
 
 IN_PROC_BROWSER_TEST_F(WebGLInfobarTest, ContextLossInfobarReload) {
-  // crbug.com/162982, flaky on Mac Retina Release, timeout on Debug.
-  if (GPUTestBotConfig::CurrentConfigMatches("MAC NVIDIA 0x0fd5"))
+  if (GPUTestBotConfig::CurrentConfigMatches("XP"))
     return;
 
   content::DOMMessageQueue message_queue;