Remove more oilpan.

sky/engine/core/html/canvas/WebGLFramebuffer.cpp

Index: sky/engine/core/html/canvas/WebGLFramebuffer.cpp
diff --git a/sky/engine/core/html/canvas/WebGLFramebuffer.cpp b/sky/engine/core/html/canvas/WebGLFramebuffer.cpp
index 01ab82369a23e19a05fb910ba1f9012bd18efe13..d12d3ab2a63489436982fc2a3f6a70147e9646e1 100644
--- a/sky/engine/core/html/canvas/WebGLFramebuffer.cpp
+++ b/sky/engine/core/html/canvas/WebGLFramebuffer.cpp
@@ -29,6 +29,7 @@
 
 #include "core/html/canvas/WebGLRenderingContextBase.h"
 #include "platform/NotImplemented.h"
+#include "wtf/Vector.h"
 
 namespace blink {
 
@@ -43,8 +44,6 @@ namespace {
     public:
         static PassRefPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLRenderbuffer*);
 
-        virtual void trace(Visitor*) override;
-
     private:
         explicit WebGLRenderbufferAttachment(WebGLRenderbuffer*);
         WebGLRenderbufferAttachment() { }
@@ -68,12 +67,6 @@ namespace {
         return adoptRef(new WebGLRenderbufferAttachment(renderbuffer));
     }
 
-    void WebGLRenderbufferAttachment::trace(Visitor* visitor)
-    {
-        visitor->trace(m_renderbuffer);
-        WebGLFramebuffer::WebGLAttachment::trace(visitor);
-    }
-
     WebGLRenderbufferAttachment::WebGLRenderbufferAttachment(WebGLRenderbuffer* renderbuffer)
         : m_renderbuffer(renderbuffer)
     {
@@ -151,8 +144,6 @@ namespace {
     public:
         static PassRefPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLTexture*, GLenum target, GLint level);
 
-        virtual void trace(Visitor*) override;
-
     private:
         WebGLTextureAttachment(WebGLTexture*, GLenum target, GLint level);
         WebGLTextureAttachment() { }
@@ -178,12 +169,6 @@ namespace {
         return adoptRef(new WebGLTextureAttachment(texture, target, level));
     }
 
-    void WebGLTextureAttachment::trace(Visitor* visitor)
-    {
-        visitor->trace(m_texture);
-        WebGLFramebuffer::WebGLAttachment::trace(visitor);
-    }
-
     WebGLTextureAttachment::WebGLTextureAttachment(WebGLTexture* texture, GLenum target, GLint level)
         : m_texture(texture)
         , m_target(target)
@@ -628,12 +613,4 @@ GLenum WebGLFramebuffer::getDrawBuffer(GLenum drawBuffer)
     return GL_NONE;
 }
 
-void WebGLFramebuffer::trace(Visitor* visitor)
-{
-#if ENABLE(OILPAN)
-    visitor->trace(m_attachments);
-#endif
-    WebGLContextObject::trace(visitor);
-}
-
 }