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

Source/modules/webgl/OESTextureHalfFloat.cpp

Index: Source/modules/webgl/OESTextureHalfFloat.cpp
diff --git a/Source/modules/webgl/OESTextureHalfFloat.cpp b/Source/modules/webgl/OESTextureHalfFloat.cpp
index aa41d1acde8ea45b649d5609e3cacf52f24ef910..f50ecced8e9f85cc59b1ccd995a5daf3ca10af95 100644
--- a/Source/modules/webgl/OESTextureHalfFloat.cpp
+++ b/Source/modules/webgl/OESTextureHalfFloat.cpp
@@ -44,9 +44,9 @@
     return OESTextureHalfFloatName;
 }
 
-OESTextureHalfFloat* OESTextureHalfFloat::create(WebGLRenderingContextBase* context)
+PassRefPtrWillBeRawPtr<OESTextureHalfFloat> OESTextureHalfFloat::create(WebGLRenderingContextBase* context)
 {
-    return new OESTextureHalfFloat(context);
+    return adoptRefWillBeNoop(new OESTextureHalfFloat(context));
 }
 
 bool OESTextureHalfFloat::supported(WebGLRenderingContextBase* context)