Rename ui-show-layer-borders to be consistent with other flag.

cc/base/switches.cc

Index: cc/base/switches.cc
diff --git a/cc/base/switches.cc b/cc/base/switches.cc
index 1c562c9b4d7a918b7c786e614372d2cac800a4aa..07941afdbce3dff786f415e9fc930a04c8078f8c 100644
--- a/cc/base/switches.cc
+++ b/cc/base/switches.cc
@@ -58,7 +58,7 @@ const char kEnableSurfaceSynchronization[] = "enable-surface-synchronization";
 // Renders a border around compositor layers to help debug and study
 // layer compositing.
 const char kShowCompositedLayerBorders[] = "show-composited-layer-borders";
-const char kUIShowCompositedLayerBorders[] = "ui-show-layer-borders";
+const char kUIShowCompositedLayerBorders[] = "ui-show-composited-layer-borders";
 const char kCompositedRenderPassBorders[] = "renderpass";
 const char kCompositedSurfaceBorders[] = "surface";
 const char kCompositedLayerBorders[] = "layer";