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

Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp

Index: Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
diff --git a/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp b/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
index 6c12bccb7048db6bf46c1ecee414aec519394be5..487bd58f066efa6cacfe9244909ee30fe6ee932e 100644
--- a/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
+++ b/Source/core/html/canvas/WebGLVertexArrayObjectOES.cpp
@@ -31,9 +31,9 @@
 
 namespace WebCore {
 
-PassRefPtr<WebGLVertexArrayObjectOES> WebGLVertexArrayObjectOES::create(WebGLRenderingContextBase* ctx, VaoType type)
+PassRefPtrWillBeRawPtr<WebGLVertexArrayObjectOES> WebGLVertexArrayObjectOES::create(WebGLRenderingContextBase* ctx, VaoType type)
 {
-    return adoptRef(new WebGLVertexArrayObjectOES(ctx, type));
+    return adoptRefWillBeNoop(new WebGLVertexArrayObjectOES(ctx, type));
 }
 
 WebGLVertexArrayObjectOES::WebGLVertexArrayObjectOES(WebGLRenderingContextBase* ctx, VaoType type)
@@ -56,6 +56,11 @@ WebGLVertexArrayObjectOES::WebGLVertexArrayObjectOES(WebGLRenderingContextBase*
 
 WebGLVertexArrayObjectOES::~WebGLVertexArrayObjectOES()
 {
+#if ENABLE(OILPAN)
+    m_boundElementArrayBuffer = nullptr;
+    m_vertexAttribState.clear();
+#endif
+    detach();
     deleteObject(0);
 }
 
@@ -65,7 +70,7 @@ void WebGLVertexArrayObjectOES::deleteObjectImpl(blink::WebGraphicsContext3D* co
     case VaoTypeDefault:
         break;
     default:
-        context()->webContext()->deleteVertexArrayOES(object);
+        context3d->deleteVertexArrayOES(object);
         break;
     }
 
@@ -79,18 +84,17 @@ void WebGLVertexArrayObjectOES::deleteObjectImpl(blink::WebGraphicsContext3D* co
     }
 }
 
-void WebGLVertexArrayObjectOES::setElementArrayBuffer(PassRefPtr<WebGLBuffer> buffer)
+void WebGLVertexArrayObjectOES::setElementArrayBuffer(PassRefPtrWillBeRawPtr<WebGLBuffer> buffer)
 {
     if (buffer)
         buffer->onAttached();
     if (m_boundElementArrayBuffer)
         m_boundElementArrayBuffer->onDetached(context()->webContext());
     m_boundElementArrayBuffer = buffer;
-
 }
 
 void WebGLVertexArrayObjectOES::setVertexAttribState(
-    GLuint index, GLsizei bytesPerElement, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLintptr offset, PassRefPtr<WebGLBuffer> buffer)
+    GLuint index, GLsizei bytesPerElement, GLint size, GLenum type, GLboolean normalized, GLsizei stride, GLintptr offset, PassRefPtrWillBeRawPtr<WebGLBuffer> buffer)
 {
     GLsizei validatedStride = stride ? stride : bytesPerElement;
 
@@ -111,7 +115,7 @@ void WebGLVertexArrayObjectOES::setVertexAttribState(
     state.offset = offset;
 }
 
-void WebGLVertexArrayObjectOES::unbindBuffer(PassRefPtr<WebGLBuffer> buffer)
+void WebGLVertexArrayObjectOES::unbindBuffer(PassRefPtrWillBeRawPtr<WebGLBuffer> buffer)
 {
     if (m_boundElementArrayBuffer == buffer) {
         m_boundElementArrayBuffer->onDetached(context()->webContext());
@@ -133,4 +137,16 @@ void WebGLVertexArrayObjectOES::setVertexAttribDivisor(GLuint index, GLuint divi
     state.divisor = divisor;
 }
 
+void WebGLVertexArrayObjectOES::VertexAttribState::trace(Visitor* visitor)
+{
+    visitor->trace(bufferBinding);
+}
+
+void WebGLVertexArrayObjectOES::trace(Visitor* visitor)
+{
+    visitor->trace(m_boundElementArrayBuffer);
+    visitor->trace(m_vertexAttribState);
+    WebGLContextObject::trace(visitor);
+}
+
 }