Add the ability to clear the shader disk cache.

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 98e83511f35781239ef4652e83f9095eb5f21e32..c9edab2352417c3ec423e848f23a83b7da6c0e59 100644
--- a/content/browser/gpu/gpu_process_host.cc
+++ b/content/browser/gpu/gpu_process_host.cc
@@ -19,7 +19,7 @@
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/gpu/gpu_process_host_ui_shim.h"
 #include "content/browser/gpu/gpu_surface_tracker.h"
-#include "content/browser/gpu/shader_disk_cache.h"
+#include "content/browser/gpu/shader_disk_cache_impl.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/child_process_host_impl.h"
@@ -1132,7 +1132,7 @@ void GpuProcessHost::CreateChannelCache(int32 client_id, size_t cache_size) {
   TRACE_EVENT0("gpu", "GpuProcessHost::CreateChannelCache");
 
   scoped_refptr<ShaderDiskCache> cache =
-      ShaderCacheFactory::GetInstance()->Get(client_id);
+      ShaderCacheFactoryImpl::GetInstance()->Get(client_id);
   if (!cache)
     return;