Route selection bounds updates through WebLayerTreeView

public/platform/WebSelectionBound.h

Index: public/platform/WebSelectionBound.h
diff --git a/public/platform/WebSelectionBound.h b/public/platform/WebSelectionBound.h
index 04b67e219a133e895537e8a74a9279e22e58276b..bdedd3636e685e4a8cff8b5c1e863b384057f490 100644
--- a/public/platform/WebSelectionBound.h
+++ b/public/platform/WebSelectionBound.h
@@ -6,7 +6,6 @@
 #define WebSelectionBound_h
 
 #include "public/platform/WebPoint.h"
-#include "public/platform/WebRect.h"
 
 namespace blink {
 
@@ -31,12 +30,6 @@ struct WebSelectionBound {
     // The id of the platform layer to which the bound should be anchored.
     int layerId;
 
-    // The one-dimensional rect of the bound's edge in layer coordinates, not to
-    // be confused with the selection region.
-    // FIXME: Remove when downstream code uses |edge{Top|Bottom}InLayer|,
-    // crbug.com/405666.
-    WebRect edgeRectInLayer;
-
     // The bottom and top coordinates of the edge (caret), in layer coordinates,
     // that define the selection bound.
     WebPoint edgeTopInLayer;