input: Remove now dead code.

content/browser/renderer_host/input/mock_input_router_client.cc

Index: content/browser/renderer_host/input/mock_input_router_client.cc
diff --git a/content/browser/renderer_host/input/mock_input_router_client.cc b/content/browser/renderer_host/input/mock_input_router_client.cc
index 2a3cde0700029e7e19db2d06e338e4bd7088a1bd..50fcf500bd2923207aacd080bd9d4fdf195b09ad 100644
--- a/content/browser/renderer_host/input/mock_input_router_client.cc
+++ b/content/browser/renderer_host/input/mock_input_router_client.cc
@@ -23,9 +23,7 @@ MockInputRouterClient::MockInputRouterClient()
       in_flight_event_count_(0),
       has_touch_handler_(false),
       filter_state_(INPUT_EVENT_ACK_STATE_NOT_CONSUMED),
-      filter_input_event_called_(false),
-      did_flush_called_count_(0) {
-}
+      filter_input_event_called_(false) {}
 
 MockInputRouterClient::~MockInputRouterClient() {}
 
@@ -52,10 +50,6 @@ void MockInputRouterClient::OnHasTouchEventHandlers(
   has_touch_handler_ = has_handlers;
 }
 
-void MockInputRouterClient::DidFlush() {
-  ++did_flush_called_count_;
-}
-
 void MockInputRouterClient::DidOverscroll(
     const ui::DidOverscrollParams& params) {
   overscroll_ = params;
@@ -78,12 +72,6 @@ bool MockInputRouterClient::GetAndResetFilterEventCalled() {
   return filter_input_event_called;
 }
 
-size_t MockInputRouterClient::GetAndResetDidFlushCount() {
-  size_t did_flush_called_count = did_flush_called_count_;
-  did_flush_called_count_ = 0;
-  return did_flush_called_count;
-}
-
 ui::DidOverscrollParams MockInputRouterClient::GetAndResetOverscroll() {
   ui::DidOverscrollParams overscroll;
   std::swap(overscroll_, overscroll);