Figure out whether we have enough information to make the final GPU blacklisting decision.

content/public/common/content_switches.cc

Index: content/public/common/content_switches.cc
===================================================================
--- content/public/common/content_switches.cc	(revision 160744)
+++ content/public/common/content_switches.cc	(working copy)
@@ -599,6 +599,9 @@
 // content. The switch is intended only for tests.
 const char kSkipGpuDataLoading[]            = "skip-gpu-data-loading";
 
+// Skip collecting full GPU info upon GPU process launch.
+const char kSkipGpuFullInfoCollection[]     = "skip-gpu-full-info-collection";
+
 // GestureTapDown events are deferred by this many miillseconds before
 // sending them to the renderer.
 const char kTapDownDeferralTimeMs[]         = "tap-down-deferral-time";