Plum through ANGLE_depth_texture

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 b626441302b325cd476204a2a0970a75b4eb2bee..9856f77aa47c2979f0ffdeab0a96208b268d5ddf 100644
--- a/gpu/command_buffer/service/feature_info.h
+++ b/gpu/command_buffer/service/feature_info.h
@@ -77,6 +77,10 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
     return &validators_;
   }
 
+  const ValueValidator<GLenum>& GetTextureFormatValidator(GLenum format) {
+    return texture_format_validators_[format];
+  }
+
   const std::string& extensions() const {
     return extensions_;
   }
@@ -87,12 +91,17 @@ class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> {
 
  private:
   friend class base::RefCounted<FeatureInfo>;
+
+  typedef base::hash_map<GLenum, ValueValidator<GLenum> > ValidatorMap;
+  ValidatorMap texture_format_validators_;
+
   ~FeatureInfo();
 
   void AddExtensionString(const std::string& str);
 
   Validators validators_;
 
+
   DisallowedFeatures disallowed_features_;
 
   // The extensions string returned by glGetString(GL_EXTENSIONS);