Connect up --disable-gl-multisampling to command buffer

gpu/command_buffer/service/feature_info.h

Index: gpu/command_buffer/service/feature_info.h
diff --git a/gpu/command_buffer/service/feature_info.h b/gpu/command_buffer/service/feature_info.h
index a11aa70db6da920a2e9833aaddcef0d0c28d29de..65dfe3518bcd10beac6fa1b45924b6608db0e268 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -6,6 +6,7 @@
 #define GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
 
 #include <string>
+#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gles2_cmd_validation.h"
 
 namespace gpu {
@@ -36,7 +37,8 @@ class FeatureInfo {
 
   // If allowed features = NULL or "*", all features are allowed. Otherwise
   // only features that match the strings in allowed_features are allowed.
-  bool Initialize(const char* allowed_features);
+  bool Initialize(const DisallowedExtensions& disallowed,
+                  const char* allowed_features);
 
   // Turns on certain features if they can be turned on. NULL turns on
   // all available features.
@@ -59,6 +61,8 @@ class FeatureInfo {
 
   Validators validators_;
 
+  DisallowedExtensions disallowed_extensions_;
+
   // The extensions string returned by glGetString(GL_EXTENSIONS);
   std::string extensions_;