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

Source/modules/webgl/WebGL2RenderingContext.h

Index: Source/modules/webgl/WebGL2RenderingContext.h
diff --git a/Source/modules/webgl/WebGL2RenderingContext.h b/Source/modules/webgl/WebGL2RenderingContext.h
index c92160fa2c254fa08a0543b059a44c28c5a10dd0..826e39204645f5917363bdbc6829288a80ebe1d2 100644
--- a/Source/modules/webgl/WebGL2RenderingContext.h
+++ b/Source/modules/webgl/WebGL2RenderingContext.h
@@ -38,16 +38,16 @@ public:
 protected:
     WebGL2RenderingContext(HTMLCanvasElement* passedCanvas, PassOwnPtr<WebGraphicsContext3D>, const WebGLContextAttributes& requestedAttributes);
 
-    RefPtrWillBeMember<CHROMIUMSubscribeUniform> m_chromiumSubscribeUniform;
-    RefPtrWillBeMember<EXTTextureFilterAnisotropic> m_extTextureFilterAnisotropic;
-    RefPtrWillBeMember<OESTextureFloatLinear> m_oesTextureFloatLinear;
-    RefPtrWillBeMember<WebGLCompressedTextureATC> m_webglCompressedTextureATC;
-    RefPtrWillBeMember<WebGLCompressedTextureETC1> m_webglCompressedTextureETC1;
-    RefPtrWillBeMember<WebGLCompressedTexturePVRTC> m_webglCompressedTexturePVRTC;
-    RefPtrWillBeMember<WebGLCompressedTextureS3TC> m_webglCompressedTextureS3TC;
-    RefPtrWillBeMember<WebGLDebugRendererInfo> m_webglDebugRendererInfo;
-    RefPtrWillBeMember<WebGLDebugShaders> m_webglDebugShaders;
-    RefPtrWillBeMember<WebGLLoseContext> m_webglLoseContext;
+    PersistentWillBeMember<CHROMIUMSubscribeUniform> m_chromiumSubscribeUniform;

[Ken Russell (switch to Gerrit), 2015/08/01 00:11:56]

Could you explain why these (and some other references) aren't being converted
to Members at this point?

[peria, 2015/08/03 09:00:35]

Because doing it will effect on too many other classes.

Persistent pointers are used in non-Oilpan objects to figure Oilpan objects, and
WebGL2RenderingContext inherits a non-Oilpan class CanvasRenderingContext.
To make those member variables to Member<> type values, we have to migrate
CanvasRenderingContext and its inheritances onto Oilpan heap.

+    PersistentWillBeMember<EXTTextureFilterAnisotropic> m_extTextureFilterAnisotropic;
+    PersistentWillBeMember<OESTextureFloatLinear> m_oesTextureFloatLinear;
+    PersistentWillBeMember<WebGLCompressedTextureATC> m_webglCompressedTextureATC;
+    PersistentWillBeMember<WebGLCompressedTextureETC1> m_webglCompressedTextureETC1;
+    PersistentWillBeMember<WebGLCompressedTexturePVRTC> m_webglCompressedTexturePVRTC;
+    PersistentWillBeMember<WebGLCompressedTextureS3TC> m_webglCompressedTextureS3TC;
+    PersistentWillBeMember<WebGLDebugRendererInfo> m_webglDebugRendererInfo;
+    PersistentWillBeMember<WebGLDebugShaders> m_webglDebugShaders;
+    PersistentWillBeMember<WebGLLoseContext> m_webglLoseContext;
 };
 
 DEFINE_TYPE_CASTS(WebGL2RenderingContext, CanvasRenderingContext, context,