Make canvas filters use the font size in effect when the filter is set

third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp

Index: third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp
diff --git a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp
index e20014c5d758e6e83cfec86e7ec6c140a5c513c8..7614344777eaa2b8807216639c1e271db631d3c7 100644
--- a/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp
+++ b/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2D.cpp
@@ -372,12 +372,17 @@ void CanvasRenderingContext2D::didDraw(const SkIRect& dirtyRect)
 
 bool CanvasRenderingContext2D::stateHasFilter()
 {
-    return state().hasFilter(canvas(), accessFont(), canvas()->size(), this);
+    return state().hasFilter(canvas(), canvas()->size(), this);
 }
 
 SkImageFilter* CanvasRenderingContext2D::stateGetFilter()
 {
-    return state().getFilter(canvas(), accessFont(), canvas()->size(), this);
+    return state().getFilter(canvas(), canvas()->size(), this);
+}
+
+void CanvasRenderingContext2D::snapshotStateForFilter()
+{
+    modifiableState().setFontForFilter(accessFont());
 }
 
 SkCanvas* CanvasRenderingContext2D::drawingCanvas() const