Replace "nested message loop" with "nested run loop" in comments.

third_party/WebKit/Source/web/tests/TouchActionTest.cpp

Index: third_party/WebKit/Source/web/tests/TouchActionTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/TouchActionTest.cpp b/third_party/WebKit/Source/web/tests/TouchActionTest.cpp
index e05966355504c4e3c695575fd5dd705c43fd66ec..7f83f429a076211889e861c7fb197ae176845d50 100644
--- a/third_party/WebKit/Source/web/tests/TouchActionTest.cpp
+++ b/third_party/WebKit/Source/web/tests/TouchActionTest.cpp
@@ -129,7 +129,7 @@ void TouchActionTest::RunTouchActionTest(std::string file) {
   TouchActionTrackingWebWidgetClient client;
 
   // runTouchActionTest() loads a document in a frame, setting up a
-  // nested message loop. Should any Oilpan GC happen while it is in
+  // nested run loop. Should any Oilpan GC happen while it is in
   // effect, the implicit assumption that we're outside any event
   // loop (=> there being no pointers on the stack needing scanning)
   // when that GC strikes will no longer hold.