Oilpan: move 2D Canvas and WebGL objects to the heap.

Source/core/html/canvas/WebGLFramebuffer.cpp

Index: Source/core/html/canvas/WebGLFramebuffer.cpp
diff --git a/Source/core/html/canvas/WebGLFramebuffer.cpp b/Source/core/html/canvas/WebGLFramebuffer.cpp
index e968a306e5d313c7c07dbe191b3f2466b1c4135b..7cb5dc4b82724ea887c7ddaefa1f69126d9a23b1 100644
--- a/Source/core/html/canvas/WebGLFramebuffer.cpp
+++ b/Source/core/html/canvas/WebGLFramebuffer.cpp
@@ -41,7 +41,9 @@ namespace {
 
     class WebGLRenderbufferAttachment FINAL : public WebGLFramebuffer::WebGLAttachment {
     public:
-        static PassRefPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLRenderbuffer*);
+        static PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLRenderbuffer*);
+
+        virtual void trace(Visitor*) OVERRIDE;
 
     private:
         WebGLRenderbufferAttachment(WebGLRenderbuffer*);
@@ -58,12 +60,18 @@ namespace {
 
         WebGLRenderbufferAttachment() { };
 
-        RefPtr<WebGLRenderbuffer> m_renderbuffer;
+        RefPtrWillBeMember<WebGLRenderbuffer> m_renderbuffer;
     };
 
-    PassRefPtr<WebGLFramebuffer::WebGLAttachment> WebGLRenderbufferAttachment::create(WebGLRenderbuffer* renderbuffer)
+    PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> WebGLRenderbufferAttachment::create(WebGLRenderbuffer* renderbuffer)
+    {
+        return adoptRefWillBeNoop(new WebGLRenderbufferAttachment(renderbuffer));
+    }
+
+    void WebGLRenderbufferAttachment::trace(Visitor* visitor)
     {
-        return adoptRef(new WebGLRenderbufferAttachment(renderbuffer));
+        visitor->trace(m_renderbuffer);
+        WebGLFramebuffer::WebGLAttachment::trace(visitor);
     }
 
     WebGLRenderbufferAttachment::WebGLRenderbufferAttachment(WebGLRenderbuffer* renderbuffer)
@@ -141,7 +149,9 @@ namespace {
 
     class WebGLTextureAttachment FINAL : public WebGLFramebuffer::WebGLAttachment {
     public:
-        static PassRefPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLTexture*, GLenum target, GLint level);
+        static PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLTexture*, GLenum target, GLint level);
+
+        virtual void trace(Visitor*) OVERRIDE;
 
     private:
         WebGLTextureAttachment(WebGLTexture*, GLenum target, GLint level);
@@ -158,14 +168,20 @@ namespace {
 
         WebGLTextureAttachment() { };
 
-        RefPtr<WebGLTexture> m_texture;
+        RefPtrWillBeMember<WebGLTexture> m_texture;
         GLenum m_target;
         GLint m_level;
     };
 
-    PassRefPtr<WebGLFramebuffer::WebGLAttachment> WebGLTextureAttachment::create(WebGLTexture* texture, GLenum target, GLint level)
+    PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> WebGLTextureAttachment::create(WebGLTexture* texture, GLenum target, GLint level)
     {
-        return adoptRef(new WebGLTextureAttachment(texture, target, level));
+        return adoptRefWillBeNoop(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)
@@ -253,9 +269,9 @@ WebGLFramebuffer::WebGLAttachment::~WebGLAttachment()
 {
 }
 
-PassRefPtr<WebGLFramebuffer> WebGLFramebuffer::create(WebGLRenderingContextBase* ctx)
+PassRefPtrWillBeRawPtr<WebGLFramebuffer> WebGLFramebuffer::create(WebGLRenderingContextBase* ctx)
 {
-    return adoptRef(new WebGLFramebuffer(ctx));
+    return adoptRefWillBeNoop(new WebGLFramebuffer(ctx));
 }
 
 WebGLFramebuffer::WebGLFramebuffer(WebGLRenderingContextBase* ctx)
@@ -595,4 +611,10 @@ GLenum WebGLFramebuffer::getDrawBuffer(GLenum drawBuffer)
     return GL_NONE;
 }
 
+void WebGLFramebuffer::trace(Visitor* visitor)
+{
+    visitor->trace(m_attachments);
+    WebGLContextObject::trace(visitor);
+}
+
 }