WIP Add getCoalescedEvents API using vector of WebInputEvents

components/test_runner/text_input_controller.cc

Index: components/test_runner/text_input_controller.cc
diff --git a/components/test_runner/text_input_controller.cc b/components/test_runner/text_input_controller.cc
index c2241267b8bef72a4d07a80203a24516772ecfdc..17b881728e6ca66fc6391d31f39df436f2128954 100644
--- a/components/test_runner/text_input_controller.cc
+++ b/components/test_runner/text_input_controller.cc
@@ -281,7 +281,8 @@ void TextInputController::SetComposition(const std::string& text) {
   key_down.type = blink::WebInputEvent::RawKeyDown;
   key_down.modifiers = 0;
   key_down.windowsKeyCode = 0xE5;  // VKEY_PROCESSKEY
-  view()->handleInputEvent(key_down);
+  view()->handleInputEvent(key_down,
+                           std::vector<const blink::WebInputEvent*>());
 
   // The value returned by std::string::length() may not correspond to the
   // actual number of encoded characters in sequences of multi-byte or