Add fixed raster scale use counter histograms.

cc/trees/proxy_impl.cc

Index: cc/trees/proxy_impl.cc
diff --git a/cc/trees/proxy_impl.cc b/cc/trees/proxy_impl.cc
index 123e394d508152a4f3a1972ecebefeec55b7555e..fbce021febc3d030cb6287e88c3d0de5e4b881da 100644
--- a/cc/trees/proxy_impl.cc
+++ b/cc/trees/proxy_impl.cc
@@ -504,6 +504,12 @@ void ProxyImpl::ScheduledActionSendBeginMainFrame(const BeginFrameArgs& args) {
       layer_tree_host_impl_->memory_allocation_limit_bytes();
   begin_main_frame_state->evicted_ui_resources =
       layer_tree_host_impl_->EvictedUIResourcesExist();
+  begin_main_frame_state->has_fixed_raster_scale_blurry_content =
+      layer_tree_host_impl_->has_fixed_raster_scale_blurry_content();
+  begin_main_frame_state
+      ->has_fixed_raster_scale_potential_performance_regression =
+      layer_tree_host_impl_
+          ->HasFixedRasterScalePotentialPerformanceRegression();
   channel_impl_->BeginMainFrame(std::move(begin_main_frame_state));
   devtools_instrumentation::DidRequestMainThreadFrame(layer_tree_host_id_);
 }