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

tools/clang/blink_gc_plugin/tests/fields_require_tracing.h

Index: tools/clang/blink_gc_plugin/tests/fields_require_tracing.h
diff --git a/tools/clang/blink_gc_plugin/tests/fields_require_tracing.h b/tools/clang/blink_gc_plugin/tests/fields_require_tracing.h
index 1819411f64025b5210d47badd9c2733d15a0c83e..c8159a99fb02f8c18e74d0a22c097a44cfa32853 100644
--- a/tools/clang/blink_gc_plugin/tests/fields_require_tracing.h
+++ b/tools/clang/blink_gc_plugin/tests/fields_require_tracing.h
@@ -15,7 +15,7 @@ class PartObject;
 class PartBObject {
     DISALLOW_NEW();
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     HeapHashSet<PartBObject> m_set;
     HeapVector<PartBObject> m_vector;
@@ -24,7 +24,7 @@ private:
 class PartObject {
     DISALLOW_NEW();
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     Member<HeapObject> m_obj1;
     Member<HeapObject> m_obj2;
@@ -35,7 +35,7 @@ private:
 
 class HeapObject : public GarbageCollected<HeapObject> {
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     PartObject m_part;
     Member<HeapObject> m_obj;