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

Source/modules/webgl/EXTTextureFilterAnisotropic.cpp

Index: Source/modules/webgl/EXTTextureFilterAnisotropic.cpp
diff --git a/Source/modules/webgl/EXTTextureFilterAnisotropic.cpp b/Source/modules/webgl/EXTTextureFilterAnisotropic.cpp
index 39b3ec6d35e8f1565d63558fd4d2c9dfb20fa4d4..9a2d5606ef8efbaa56526c2e095e754d520e3bc6 100644
--- a/Source/modules/webgl/EXTTextureFilterAnisotropic.cpp
+++ b/Source/modules/webgl/EXTTextureFilterAnisotropic.cpp
@@ -44,9 +44,9 @@
     return EXTTextureFilterAnisotropicName;
 }
 
-EXTTextureFilterAnisotropic* EXTTextureFilterAnisotropic::create(WebGLRenderingContextBase* context)
+PassRefPtrWillBeRawPtr<EXTTextureFilterAnisotropic> EXTTextureFilterAnisotropic::create(WebGLRenderingContextBase* context)
 {
-    return new EXTTextureFilterAnisotropic(context);
+    return adoptRefWillBeNoop(new EXTTextureFilterAnisotropic(context));
 }
 
 bool EXTTextureFilterAnisotropic::supported(WebGLRenderingContextBase* context)