Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/style/ComputedStyle.h

Index: third_party/WebKit/Source/core/style/ComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.h b/third_party/WebKit/Source/core/style/ComputedStyle.h
index e060b085fb649f794af4dc872ae29eabeb44cd44..a3f659a41fe1b3f9ff0251d9893730b1ff95ac0c 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -1665,7 +1665,7 @@ public:
     void setCy(const Length& cy) { accessSVGStyle().setCy(cy); }
 
     // d
-    void setD(PassRefPtr<StylePath> d) { accessSVGStyle().setD(d); }
+    void setD(PassRefPtr<StylePath> d) { accessSVGStyle().setD(std::move(d)); }
 
     // x
     void setX(const Length& x) { accessSVGStyle().setX(x); }
@@ -1713,7 +1713,7 @@ public:
 
     // stroke-dasharray
     SVGDashArray* strokeDashArray() const { return svgStyle().strokeDashArray(); }
-    void setStrokeDashArray(PassRefPtr<SVGDashArray> array) { accessSVGStyle().setStrokeDashArray(array); }
+    void setStrokeDashArray(PassRefPtr<SVGDashArray> array) { accessSVGStyle().setStrokeDashArray(std::move(array)); }
 
     // stroke-dashoffset
     const Length& strokeDashOffset() const { return svgStyle().strokeDashOffset(); }