Don't call LayoutPart::widgetPositionsUpdated unnecessarily.

third_party/WebKit/Source/core/frame/FrameView.h

Index: third_party/WebKit/Source/core/frame/FrameView.h
diff --git a/third_party/WebKit/Source/core/frame/FrameView.h b/third_party/WebKit/Source/core/frame/FrameView.h
index 2bb1247fa689d8a7f9b102b69ab36d47825cc2ce..f79af59afbf4d8c8f1b5579e98315fc6e20634cd 100644
--- a/third_party/WebKit/Source/core/frame/FrameView.h
+++ b/third_party/WebKit/Source/core/frame/FrameView.h
@@ -127,7 +127,7 @@ public:
     bool needsLayout() const;
     void setNeedsLayout();
 
-    void setNeedsUpdateWidgetPositions() { m_needsUpdateWidgetPositions = true; }
+    void setNeedsUpdateWidgetGeometries() { m_needsUpdateWidgetGeometries = true; }
 
     // Methods for getting/setting the size Blink should use to layout the contents.
     // NOTE: Scrollbar exclusion is based on the FrameView's scrollbars. To exclude
@@ -215,7 +215,7 @@ public:
     void addPart(LayoutPart*);
     void removePart(LayoutPart*);
 
-    void updateWidgetPositions();
+    void updateWidgetGeometries();
 
     void addPartToUpdate(LayoutEmbeddedObject&);
 
@@ -677,7 +677,7 @@ private:
     IntPoint convertToContainingWidget(const IntPoint&) const override;
     IntPoint convertFromContainingWidget(const IntPoint&) const override;
 
-    void updateWidgetPositionsIfNeeded();
+    void updateWidgetGeometriesIfNeeded();
 
     bool wasViewportResized();
     void sendResizeEventIfNeeded();
@@ -835,7 +835,7 @@ private:
 
     float m_topControlsViewportAdjustment;
 
-    bool m_needsUpdateWidgetPositions;
+    bool m_needsUpdateWidgetGeometries;
     bool m_needsUpdateViewportIntersection;
     bool m_needsUpdateViewportIntersectionInSubtree;