Revert "Revert 193798 "Revert r192949 "Disable shader disk cache by defa...""

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 c96663d1227cc91480c1d7191ce48cab9ee5e871..2d2a5e2a7aa597a5ff084161c83253f22f1757b4 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -717,8 +717,8 @@ void GpuProcessHost::EstablishGpuChannel(
     callback.Run(IPC::ChannelHandle(), GPUInfo());
   }
 
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kEnableGpuShaderDiskCache)) {
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kDisableGpuShaderDiskCache)) {
     CreateChannelCache(client_id, gpu::kDefaultMaxProgramCacheMemoryBytes);
   }
 }