Devirtualize WebGLContextGroup, WebGLGetInfo and WebGLUniformLocation's destructors

Source/core/html/canvas/WebGLGetInfo.h

Index: Source/core/html/canvas/WebGLGetInfo.h
diff --git a/Source/core/html/canvas/WebGLGetInfo.h b/Source/core/html/canvas/WebGLGetInfo.h
index 552cf47f515239c894785fa5be41532e886d306b..d72e7f9c65a9ceb83f674ffc84e51c44c8d0138a 100644
--- a/Source/core/html/canvas/WebGLGetInfo.h
+++ b/Source/core/html/canvas/WebGLGetInfo.h
@@ -48,7 +48,7 @@ namespace WebCore {
 // similar variants. For reference counted types, increments and
 // decrements the reference count of the target object.
 
-class WebGLGetInfo {
+class WebGLGetInfo FINAL {
 public:
     enum Type {
         kTypeBool,
@@ -92,8 +92,6 @@ public:
     explicit WebGLGetInfo(PassRefPtr<Uint32Array> value);
     explicit WebGLGetInfo(PassRefPtr<WebGLVertexArrayObjectOES> value);
 
-    virtual ~WebGLGetInfo();
-
     Type getType() const;
 
     bool getBool() const;