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

tools/clang/blink_gc_plugin/tests/test.py

Index: tools/clang/blink_gc_plugin/tests/test.py
diff --git a/tools/clang/blink_gc_plugin/tests/test.py b/tools/clang/blink_gc_plugin/tests/test.py
index a380cc63d9e1c49ea47b66bdfe2f1858c3e63a66..b1338bfcf9c931d27951578b20a92127bd70f1a4 100755
--- a/tools/clang/blink_gc_plugin/tests/test.py
+++ b/tools/clang/blink_gc_plugin/tests/test.py
@@ -20,6 +20,10 @@ class BlinkGcPluginTest(plugin_testing.ClangPluginTest):
 
   def AdjustClangArguments(self, clang_cmd):
     clang_cmd.append('-Wno-inaccessible-base')
+    clang_cmd.append('-Xclang')
+    clang_cmd.append('-plugin-arg-blink-gc-plugin')
+    clang_cmd.append('-Xclang')
+    clang_cmd.append('use-chromium-style-naming')
 
   def ProcessOneResult(self, test_name, actual):
     # Some Blink GC plugins dump a JSON representation of the object graph, and