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

tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt

Index: tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt
diff --git a/tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt b/tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt
index 33ae5f550ac7cfe98d7e92e1a3ae225f0d020893..658af721a9a9fc43eaaf59d7288a88c14f8eaa14 100644
--- a/tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt
+++ b/tools/clang/blink_gc_plugin/tests/class_multiple_trace_bases.txt
@@ -9,6 +9,6 @@ class Derived1 : public Base, public Mixin1 {
 class Derived1 : public Base, public Mixin1 {
                               ^
 class_multiple_trace_bases.cpp:17:1: warning: [blink-gc] Base class 'Mixin2' of derived class 'Derived2' requires tracing.
-void Derived2::trace(Visitor* visitor) {
+void Derived2::Trace(Visitor* visitor) {
 ^
 2 warnings generated.