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

tools/clang/blink_gc_plugin/tests/base_requires_tracing.h

Index: tools/clang/blink_gc_plugin/tests/base_requires_tracing.h
diff --git a/tools/clang/blink_gc_plugin/tests/base_requires_tracing.h b/tools/clang/blink_gc_plugin/tests/base_requires_tracing.h
index 0205a08c6f213ad2c2dec70bfc24eae93ef400b9..c10d07f5d3675fb8786f6f51fcdf7415cc1d4865 100644
--- a/tools/clang/blink_gc_plugin/tests/base_requires_tracing.h
+++ b/tools/clang/blink_gc_plugin/tests/base_requires_tracing.h
@@ -11,23 +11,23 @@ namespace blink {
 
 class A : public GarbageCollected<A> {
 public:
-    virtual void trace(Visitor*);
+    virtual void Trace(Visitor*);
 };
 
 class B : public A {
-    // Does not need trace
+    // Does not need Trace
 };
 
 class C : public B {
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     Member<A> m_a;
 };
 
 class D : public C {
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     Member<A> m_a;
 };