[DevTools] Remove handlers = browser from protocol definition.

content/browser/devtools/protocol/input_handler.cc

Index: content/browser/devtools/protocol/input_handler.cc
diff --git a/content/browser/devtools/protocol/input_handler.cc b/content/browser/devtools/protocol/input_handler.cc
index 04be3a8e487ec7ff0f44b35f1fbaf1e5c8fc5e5e..b57eb8321b5e9d301f00f681b1c2122c0057ddb6 100644
--- a/content/browser/devtools/protocol/input_handler.cc
+++ b/content/browser/devtools/protocol/input_handler.cc
@@ -471,6 +471,14 @@ Response InputHandler::SynthesizeTapGesture(
   return Response::OK();
 }
 
+Response InputHandler::DispatchTouchEvent(
+    const std::string& type,
+    const std::vector<std::unique_ptr<base::DictionaryValue>>& touch_points,
+    const int* modifiers,
+    const double* timestamp) {
+  return Response::FallThrough();
+}
+
 void InputHandler::SendSynthesizePinchGestureResponse(
     DevToolsCommandId command_id,
     SyntheticGesture::Result result) {