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

tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h

Index: tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h
diff --git a/tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h b/tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h
index 7700b828d84e776d34b42417356514f3fb98cf52..cb2750f57fd20d829854d9cd1e008908080f96b6 100644
--- a/tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h
+++ b/tools/clang/blink_gc_plugin/tests/fields_illegal_tracing.h
@@ -19,7 +19,7 @@ public:
     operator T*() const { return 0; }
     T* operator->() { return 0; }
 
-    void trace(Visitor* visitor)
+    void Trace(Visitor* visitor)
     {
     }
 };
@@ -32,7 +32,7 @@ class PartObject;
 class PartObject {
     DISALLOW_NEW();
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     OwnPtr<HeapObject> m_obj1;
     RefPtr<HeapObject> m_obj2;
@@ -42,7 +42,7 @@ private:
 
 class HeapObject : public GarbageCollectedFinalized<HeapObject> {
 public:
-    void trace(Visitor*);
+    void Trace(Visitor*);
 private:
     PartObject m_part;
     OwnPtr<HeapObject> m_obj1;