Add use-chromium-style-naming option to Blink GC plugin.

tools/clang/blink_gc_plugin/tests/cycle_super_neg.h

Index: tools/clang/blink_gc_plugin/tests/cycle_super_neg.h
diff --git a/tools/clang/blink_gc_plugin/tests/cycle_super_neg.h b/tools/clang/blink_gc_plugin/tests/cycle_super_neg.h
index 6f99eff69fc716baf6ceda0df7da78953101a010..e80cc63d041a5b2f20ad04d818e81112fab7e947 100644
--- a/tools/clang/blink_gc_plugin/tests/cycle_super_neg.h
+++ b/tools/clang/blink_gc_plugin/tests/cycle_super_neg.h
@@ -19,12 +19,12 @@ class C;
 
 class A : public GarbageCollectedFinalized<A> {
 public:
-    virtual void trace(Visitor*) {}
+    virtual void Trace(Visitor*) {}
 };
 
 class B : public A {
 public:
-    virtual void trace(Visitor*);
+    virtual void Trace(Visitor*);
 };
 
 class C : public RefCounted<C> {
@@ -34,7 +34,7 @@ private:
 
 class D : public A {
 public:
-    virtual void trace(Visitor*);
+    virtual void Trace(Visitor*);
 private:
     RefPtr<C> m_c;
 };