[Oilpan] Migrate classes under module/webgl onto oilpan heap

Source/modules/webgl/WebGLFramebuffer.cpp

Index: Source/modules/webgl/WebGLFramebuffer.cpp
diff --git a/Source/modules/webgl/WebGLFramebuffer.cpp b/Source/modules/webgl/WebGLFramebuffer.cpp
index e9dee4049417d46953014e526d414bf565c1c9bd..d62069dc90d75d835a9f713f5b376f921b083666 100644
--- a/Source/modules/webgl/WebGLFramebuffer.cpp
+++ b/Source/modules/webgl/WebGLFramebuffer.cpp
@@ -38,7 +38,7 @@ namespace {
 
 class WebGLRenderbufferAttachment final : public WebGLFramebuffer::WebGLAttachment {
 public:
-    static PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLRenderbuffer*);
+    static WebGLFramebuffer::WebGLAttachment* create(WebGLRenderbuffer*);
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -57,12 +57,12 @@ private:
     void attach(WebGraphicsContext3D*, GLenum target, GLenum attachment) override;
     void unattach(WebGraphicsContext3D*, GLenum target, GLenum attachment) override;
 
-    RefPtrWillBeMember<WebGLRenderbuffer> m_renderbuffer;
+    Member<WebGLRenderbuffer> m_renderbuffer;
 };
 
-PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> WebGLRenderbufferAttachment::create(WebGLRenderbuffer* renderbuffer)
+WebGLFramebuffer::WebGLAttachment* WebGLRenderbufferAttachment::create(WebGLRenderbuffer* renderbuffer)
 {
-    return adoptRefWillBeNoop(new WebGLRenderbufferAttachment(renderbuffer));
+    return new WebGLRenderbufferAttachment(renderbuffer);
 }
 
 DEFINE_TRACE(WebGLRenderbufferAttachment)
@@ -140,12 +140,13 @@ void WebGLRenderbufferAttachment::unattach(WebGraphicsContext3D* context, GLenum
 
 GLenum WebGLRenderbufferAttachment::type() const
 {
+    notImplemented();
     return 0;
 }
 
 class WebGLTextureAttachment final : public WebGLFramebuffer::WebGLAttachment {
 public:
-    static PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> create(WebGLTexture*, GLenum target, GLint level);
+    static WebGLFramebuffer::WebGLAttachment* create(WebGLTexture*, GLenum target, GLint level);
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -164,14 +165,14 @@ private:
     void attach(WebGraphicsContext3D*, GLenum target, GLenum attachment) override;
     void unattach(WebGraphicsContext3D*, GLenum target, GLenum attachment) override;
 
-    RefPtrWillBeMember<WebGLTexture> m_texture;
+    Member<WebGLTexture> m_texture;
     GLenum m_target;
     GLint m_level;
 };
 
-PassRefPtrWillBeRawPtr<WebGLFramebuffer::WebGLAttachment> WebGLTextureAttachment::create(WebGLTexture* texture, GLenum target, GLint level)
+WebGLFramebuffer::WebGLAttachment* WebGLTextureAttachment::create(WebGLTexture* texture, GLenum target, GLint level)
 {
-    return adoptRefWillBeNoop(new WebGLTextureAttachment(texture, target, level));
+    return new WebGLTextureAttachment(texture, target, level);
 }
 
 DEFINE_TRACE(WebGLTextureAttachment)
@@ -324,9 +325,9 @@ WebGLFramebuffer::WebGLAttachment::~WebGLAttachment()
 {
 }
 
-PassRefPtrWillBeRawPtr<WebGLFramebuffer> WebGLFramebuffer::create(WebGLRenderingContextBase* ctx)
+WebGLFramebuffer* WebGLFramebuffer::create(WebGLRenderingContextBase* ctx)
 {
-    return adoptRefWillBeNoop(new WebGLFramebuffer(ctx));
+    return new WebGLFramebuffer(ctx);
 }
 
 WebGLFramebuffer::WebGLFramebuffer(WebGLRenderingContextBase* ctx)
@@ -339,14 +340,11 @@ WebGLFramebuffer::WebGLFramebuffer(WebGLRenderingContextBase* ctx)
 
 WebGLFramebuffer::~WebGLFramebuffer()
 {
-    // Delete the platform framebuffer resource. Explicit detachment
-    // is for the benefit of Oilpan, where the framebuffer object
-    // isn't detached when it and the WebGLRenderingContextBase object
-    // it is registered with are both finalized. Without Oilpan, the
-    // object will have been detached.
-    //
-    // To keep the code regular, the trivial detach()ment is always
-    // performed.
+    // Attachments in |m_attachments| will be deleted from other places, so we
+    // clear it to avoid deleting those attachments in detachAndDeleteObject().
+    m_attachments.clear();
+
+    // See the comment in WebGLObject::detachAndDeleteObject().
     detachAndDeleteObject();
 }
 
@@ -581,17 +579,11 @@ bool WebGLFramebuffer::hasStencilBuffer() const
 
 void WebGLFramebuffer::deleteObjectImpl(WebGraphicsContext3D* context3d)
 {
-#if !ENABLE(OILPAN)
-    // With Oilpan, both the AttachmentMap and its WebGLAttachment objects are
-    // GCed objects and cannot be accessed, as they may have been finalized
+    // Both the AttachmentMap and its WebGLAttachment objects are GCed
+    // objects and cannot be accessed, as they may have been finalized
     // already during the same GC sweep.
-    //
-    // The WebGLAttachment-derived classes instead handle detachment
-    // on their own when finalizing, so the explicit notification is
-    // not needed.
     for (const auto& attachment : m_attachments)
         attachment.value->onDetached(context3d);
-#endif
 
     context3d->deleteFramebuffer(m_object);
     m_object = 0;
@@ -663,9 +655,7 @@ bool WebGLFramebuffer::getReadBufferFormatAndType(GLenum* format, GLenum* type)
 
 DEFINE_TRACE(WebGLFramebuffer)
 {
-#if ENABLE(OILPAN)
     visitor->trace(m_attachments);
-#endif
     WebGLContextObject::trace(visitor);
 }