SRGB_EXT is a valid format of texture in WebGL1.0 and ES2.0 contexts

gpu/command_buffer/service/texture_manager.cc

Index: gpu/command_buffer/service/texture_manager.cc
diff --git a/gpu/command_buffer/service/texture_manager.cc b/gpu/command_buffer/service/texture_manager.cc
index b904fc9558b9d933df5eb00f4599ad0cb4937ba6..bafb0df092a974a08329c4c4e9265b76b782a7c4 100644
--- a/gpu/command_buffer/service/texture_manager.cc
+++ b/gpu/command_buffer/service/texture_manager.cc
@@ -1592,7 +1592,8 @@ bool Texture::CanRenderTo(const FeatureInfo* feature_info, GLint level) const {
             IsValid(internal_format) &&
         internal_format != GL_ALPHA &&
         internal_format != GL_LUMINANCE &&
-        internal_format != GL_LUMINANCE_ALPHA) ||
+        internal_format != GL_LUMINANCE_ALPHA &&
+        internal_format != GL_SRGB_EXT) ||
        feature_info->validators()->
            texture_sized_color_renderable_internal_format.IsValid(
                internal_format));