Oilpan: Expose Heap::collectGarbage to the web layer

public/web/WebHeap.h

Index: public/web/WebHeap.h
diff --git a/public/web/WebHeap.h b/public/web/WebHeap.h
index b8d01b3af2b514f86d2fea7a4044bb85a236d917..b6f7b79d54176677b4421ae36758c02ffa0c32e2 100644
--- a/public/web/WebHeap.h
+++ b/public/web/WebHeap.h
@@ -47,6 +47,10 @@ public:
         BLINK_EXPORT SafePointScope();
         BLINK_EXPORT ~SafePointScope();
     };
+
+    static void collectGarbage();

[Mads Ager (chromium), 2014/09/04 12:13:55]

Could you add a comment that these are only exposed for testing purposes and
should not be used outside of tests?

[haraken, 2014/09/04 12:15:51]

Done.

+    static void collectGarbageWithNoPointersOnStack();
+    static void collectAllGarbage();
 };
 
 } // namespace blink