Make WebGL2 objects Oilpan compatible.

Source/core/html/canvas/WebGLQuery.cpp

Index: Source/core/html/canvas/WebGLQuery.cpp
diff --git a/Source/core/html/canvas/WebGLQuery.cpp b/Source/core/html/canvas/WebGLQuery.cpp
index eebca4ed1f02b0818a835561665be82296613936..f62268e7a63361359b0e1e0d02f4832091fe3a5c 100644
--- a/Source/core/html/canvas/WebGLQuery.cpp
+++ b/Source/core/html/canvas/WebGLQuery.cpp
@@ -17,7 +17,14 @@ PassRefPtrWillBeRawPtr<WebGLQuery> WebGLQuery::create(WebGL2RenderingContextBase
 
 WebGLQuery::~WebGLQuery()
 {
-    deleteObject(0);
+    // Always call detach here to ensure that platform object deletion
+    // happens with Oilpan enabled. It keeps the code regular to do it
+    // with or without Oilpan enabled.
+    //
+    // See comment in WebGLBuffer's destructor for additional
+    // information on why this is done for WebGLSharedObject-derived
+    // objects.
+    detachAndDeleteObject();

[haraken, 2015/02/10 08:44:51]

Just help me understand: Why is deleteObject(0) enough in non-oilpan but not
enough in oilpan? I'm curious about where the difference comes from.

[sof, 2015/02/10 08:50:50]

Did you read the above comment and look up the ~WebGLBuffer comment?

[haraken, 2015/02/10 08:55:33]

Thanks, got it!

 }
 
 WebGLQuery::WebGLQuery(WebGL2RenderingContextBase* ctx)