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

trunk/src/gpu/command_buffer/service/gpu_switches.cc

Index: trunk/src/gpu/command_buffer/service/gpu_switches.cc
===================================================================
--- trunk/src/gpu/command_buffer/service/gpu_switches.cc	(revision 194502)
+++ trunk/src/gpu/command_buffer/service/gpu_switches.cc	(working copy)
@@ -60,7 +60,7 @@
 const char kTraceGL[]       = "trace-gl";
 
 // Disables the GPU shader on disk cache.
-const char kDisableGpuShaderDiskCache[]     = "disable-gpu-shader-disk-cache";
+const char kEnableGpuShaderDiskCache[]      = "enable-gpu-shader-disk-cache";
 
 const char* kGpuSwitches[] = {
   kCompileShaderAlwaysSucceeds,
@@ -79,7 +79,7 @@
   kGpuDriverBugWorkarounds,
   kGpuProgramCacheSizeKb,
   kTraceGL,
-  kDisableGpuShaderDiskCache,
+  kEnableGpuShaderDiskCache,
 };
 
 const int kNumGpuSwitches = arraysize(kGpuSwitches);