WebGL 2: make sure VertexAttrib type match the corresponding attrib type in shader

gpu/command_buffer/service/feature_info.cc

Index: gpu/command_buffer/service/feature_info.cc
diff --git a/gpu/command_buffer/service/feature_info.cc b/gpu/command_buffer/service/feature_info.cc
index 46cd137b005cf5f5e9852e66ea28fadca83bd511..deb8d29d350fc2e99e81af7e2696793aa3f90b47 100644
--- a/gpu/command_buffer/service/feature_info.cc
+++ b/gpu/command_buffer/service/feature_info.cc
@@ -1424,6 +1424,14 @@ bool FeatureInfo::IsWebGLContext() const {
   return false;
 }
 
+bool FeatureInfo::IsWebGL2Context() const {
+  // Switch statement to cause a compile-time error if we miss a case.
+  if (context_type_ == CONTEXT_TYPE_WEBGL2) {
+    return true;
+  }
+  return false;
+}
+
 void FeatureInfo::AddExtensionString(const char* s) {
   std::string str(s);
   size_t pos = extensions_.find(str);