DON'T REVIEW: Hack to get alpha overlays.

cc/output/overlay_candidate.cc

Index: cc/output/overlay_candidate.cc
diff --git a/cc/output/overlay_candidate.cc b/cc/output/overlay_candidate.cc
index 64ee2a5766822feccf2798c45864f1dfaafdec50..d0d51f14b1fa34a7b230533767422565afafff6f 100644
--- a/cc/output/overlay_candidate.cc
+++ b/cc/output/overlay_candidate.cc
@@ -190,9 +190,7 @@ OverlayCandidate::~OverlayCandidate() {}
 bool OverlayCandidate::FromDrawQuad(ResourceProvider* resource_provider,
                                     const DrawQuad* quad,
                                     OverlayCandidate* candidate) {
-  if (quad->ShouldDrawWithBlending() ||
-      quad->shared_quad_state->opacity != 1.f ||
-      quad->shared_quad_state->blend_mode != SkBlendMode::kSrcOver)
+  if (quad->shared_quad_state->blend_mode != SkBlendMode::kSrcOver)
     return false;
 
   auto& transform = quad->shared_quad_state->quad_to_target_transform;