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

Source/core/html/canvas/WebGLProgram.cpp

Index: Source/core/html/canvas/WebGLProgram.cpp
diff --git a/Source/core/html/canvas/WebGLProgram.cpp b/Source/core/html/canvas/WebGLProgram.cpp
index e1e49594139fa2240e470bc50a743be707379c4e..2f8b46e36e7178ffa6458d65d492ee3f0ea1c8df 100644
--- a/Source/core/html/canvas/WebGLProgram.cpp
+++ b/Source/core/html/canvas/WebGLProgram.cpp
@@ -31,9 +31,9 @@
 
 namespace WebCore {
 
-PassRefPtr<WebGLProgram> WebGLProgram::create(WebGLRenderingContextBase* ctx)
+PassRefPtrWillBeRawPtr<WebGLProgram> WebGLProgram::create(WebGLRenderingContextBase* ctx)
 {
-    return adoptRef(new WebGLProgram(ctx));
+    return adoptRefWillBeNoop(new WebGLProgram(ctx));
 }
 
 WebGLProgram::WebGLProgram(WebGLRenderingContextBase* ctx)
@@ -185,4 +185,11 @@ void WebGLProgram::cacheInfoIfNeeded()
     m_infoValid = true;
 }
 
+void WebGLProgram::trace(Visitor* visitor)
+{
+    visitor->trace(m_vertexShader);
+    visitor->trace(m_fragmentShader);
+    WebGLSharedObject::trace(visitor);
+}
+
 }