Refactor PropertyTreeState as GeometryPropertyTreeState

third_party/WebKit/Source/platform/graphics/paint/README.md

Index: third_party/WebKit/Source/platform/graphics/paint/README.md
diff --git a/third_party/WebKit/Source/platform/graphics/paint/README.md b/third_party/WebKit/Source/platform/graphics/paint/README.md
index 46f4a0c7867cb473a25d908c62db7a7ab7e7b194..a2db6dbc2b1ebff2b45e4c571b304d65c5484747 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/README.md
+++ b/third_party/WebKit/Source/platform/graphics/paint/README.md
@@ -263,12 +263,12 @@ root layer to the overall layer hierarchy to be displayed to the user.
 
 The [`GeometryMapper`](GeometryMapper.h) is responsible for efficiently computing
 visual and transformed rects of display items in the coordinate space of ancestor
-[`PropertyTreeState`](PropertyTreeState.h)s.
+[`GeometryPropertyTreeState`](GeometryPropertyTreeState.h)s.
 
-The transformed rect of a display item in an ancestor `PropertyTreeState` is that
-rect, multiplied by the transforms between the display item's `PropertyTreeState`
-and the ancestors, then flattened into 2D.
+The transformed rect of a display item in an ancestor `GeometryPropertyTreeState`
+is that rect, multiplied by the transforms between the display item's
+`GeometryPropertyTreeState` and the ancestors, then flattened into 2D.
 
-The visual rect of a display item in an ancestor `PropertyTreeState` is the intersection
-of all of the intermediate clips (transformed in to the ancestor state), with
-the display item's transformed rect.
+The visual rect of a display item in an ancestor `GeometryPropertyTreeState` is
+the intersection of all of the intermediate clips (transformed in to the
+ancestor state), with the display item's transformed rect.