cc: Remove redundant is_overlay arguments

cc/output/overlay_processor.cc

Index: cc/output/overlay_processor.cc
diff --git a/cc/output/overlay_processor.cc b/cc/output/overlay_processor.cc
index 789fc13d7d076b7ec4db333646c7e10d21ff912e..69368a1bd5d2f6ec8d9f9698e7d4f0df79701cda 100644
--- a/cc/output/overlay_processor.cc
+++ b/cc/output/overlay_processor.cc
@@ -25,10 +25,11 @@ void OverlayProcessor::Initialize() {
 
 OverlayProcessor::~OverlayProcessor() {}
 
-void OverlayProcessor::ProcessForOverlays(RenderPassList* render_passes,
+void OverlayProcessor::ProcessForOverlays(ResourceProvider* resource_provider,
+                                          RenderPassList* render_passes,
                                           OverlayCandidateList* candidates) {
   for (auto strategy : strategies_) {
-    if (strategy->Attempt(render_passes, candidates))
+    if (strategy->Attempt(resource_provider, render_passes, candidates))
       return;
   }
 }