Plumb the anonymize rect color to toolbar_layer from Tab#getThemeColor

chrome/browser/android/compositor/compositor_view.cc

Index: chrome/browser/android/compositor/compositor_view.cc
diff --git a/chrome/browser/android/compositor/compositor_view.cc b/chrome/browser/android/compositor/compositor_view.cc
index b4d0f6f1f8cd8c71e05f0cd8bf5c12124f6647c7..71934589a687aaf3c9bd474c8421967d3403599b 100644
--- a/chrome/browser/android/compositor/compositor_view.cc
+++ b/chrome/browser/android/compositor/compositor_view.cc
@@ -258,7 +258,7 @@ void CompositorView::UpdateToolbarLayer(JNIEnv* env,
   toolbar_layer_->layer()->SetHideLayerAndSubtree(!visible);
   if (visible) {
     toolbar_layer_->layer()->SetPosition(gfx::PointF(0, top_offset));
-    toolbar_layer_->PushResource(resource, false, false, false);
+    toolbar_layer_->PushResource(resource, false, SK_ColorWHITE, false);
 
     // If we're at rest, hide the shadow.  The Android view should be drawing.
     toolbar_layer_->layer()->SetMasksToBounds(top_offset >= 0.f);