Normalize the top-level ui/ module.

tools/valgrind/chrome_tests.py

Index: tools/valgrind/chrome_tests.py
diff --git a/tools/valgrind/chrome_tests.py b/tools/valgrind/chrome_tests.py
index 4618778a635deae4b523a34d05ec54c678d3513e..9fc4709f110631e7d435ac6054b8fd38b15d8b39 100755
--- a/tools/valgrind/chrome_tests.py
+++ b/tools/valgrind/chrome_tests.py
@@ -264,8 +264,8 @@ class ChromeTests:
   def TestApp(self):
     return self.SimpleTest("chrome", "app_unittests")
 
-  def TestUIBase(self):
-    return self.SimpleTest("chrome", "ui_base_unittests")
+  def TestUIUnit(self):
+    return self.SimpleTest("chrome", "ui_unittests")
 
   def TestGfx(self):
     return self.SimpleTest("chrome", "gfx_unittests")
@@ -442,7 +442,7 @@ class ChromeTests:
     "ui": TestUI,                "ui_tests": TestUI,
     "unit": TestUnit,            "unit_tests": TestUnit,
     "app": TestApp,              "app_unittests": TestApp,
-    "ui_base": TestUIBase,       "ui_base_unittests": TestUIBase,
+    "ui_unit": TestUIUnit,       "ui_unittests": TestUIUnit,
     "gfx": TestGfx,              "gfx_unittests": TestGfx,
   }