Decompress ETC texture data when there is no native support.

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 ff2222fbc2bb7eb7df5e251dcca15fa0573635d4..a34fff1b780819e830a9e57253c5c681e4dfc244 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -91,6 +91,7 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
     bool ext_blend_func_extended;
     bool ext_read_format_bgra;
     bool desktop_srgb_support;
+    bool arb_es3_compatibility;
   };
 
   FeatureInfo();