cc: Visualize non-occluding rects in composited layers.

cc/layer_tree_host.cc

Index: cc/layer_tree_host.cc
diff --git a/cc/layer_tree_host.cc b/cc/layer_tree_host.cc
index cc58a9f8056c569abca0928c37e0490af58cca2c..01d631a14dd746ea40219d251f783afa56b8ace2 100644
--- a/cc/layer_tree_host.cc
+++ b/cc/layer_tree_host.cc
@@ -45,6 +45,7 @@ LayerTreeSettings::LayerTreeSettings()
     , showScreenSpaceRects(false)
     , showReplicaScreenSpaceRects(false)
     , showOccludingRects(false)
+    , showNonOccludingRects(false)
     , renderVSyncEnabled(true)
     , perTilePaintingEnabled(false)
     , partialSwapEnabled(false)
@@ -64,6 +65,7 @@ LayerTreeSettings::LayerTreeSettings()
     showScreenSpaceRects = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kShowScreenSpaceRects);
     showReplicaScreenSpaceRects = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kShowReplicaScreenSpaceRects);
     showOccludingRects = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kShowOccludingRects);
+    showNonOccludingRects = CommandLine::ForCurrentProcess()->HasSwitch(cc::switches::kShowNonOccludingRects);
     partialSwapEnabled = CommandLine::ForCurrentProcess()->HasSwitch(switches::kEnablePartialSwap);
     backgroundColorInsteadOfCheckerboard = CommandLine::ForCurrentProcess()->HasSwitch(switches::kBackgroundColorInsteadOfCheckerboard);
     showOverdrawInTracing = CommandLine::ForCurrentProcess()->HasSwitch(switches::kTraceOverdraw);