Make WebGL objects scriptwrappable so that binding integrity checks may be applied to them.

Source/core/html/canvas/OESTextureFloat.cpp

Index: Source/core/html/canvas/OESTextureFloat.cpp
diff --git a/Source/core/html/canvas/OESTextureFloat.cpp b/Source/core/html/canvas/OESTextureFloat.cpp
index 0a983587fa2d77a9c5d819e433466f5bbf4b93a1..d2f5a22ed2af7e6861584dde584d53a7e85e8627 100644
--- a/Source/core/html/canvas/OESTextureFloat.cpp
+++ b/Source/core/html/canvas/OESTextureFloat.cpp
@@ -33,6 +33,7 @@ namespace WebCore {
 OESTextureFloat::OESTextureFloat(WebGLRenderingContext* context)
     : WebGLExtension(context)
 {
+    ScriptWrappable::init(this);
     context->graphicsContext3D()->getExtensions()->ensureEnabled("GL_OES_texture_float");
 }