Remove redundant codepath for webgl api blocking

content/browser/gpu/gpu_process_host.cc

Index: content/browser/gpu/gpu_process_host.cc
diff --git a/content/browser/gpu/gpu_process_host.cc b/content/browser/gpu/gpu_process_host.cc
index 3fe646a091ee53003ed9edd4aa24342faa4bdcb6..ca176f0a0fa0243cc4e09667e26565e03b1492e4 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -493,7 +493,11 @@ GpuProcessHost::~GpuProcessHost() {
         // Don't block offscreen contexts (and force page reload for webgl)
         // if this was an intentional shutdown or the OOM killer on Android
         // killed us while Chrome was in the background.
+// Restrict this to Android for now, since other platforms might fall through
+// here for the 'exit_on_context_lost' workaround.
+#if defined(OS_ANDROID)
         block_offscreen_contexts = false;
+#endif
         message = "The GPU process exited normally. Everything is okay.";
         break;
       case base::TERMINATION_STATUS_ABNORMAL_TERMINATION: