content: Remove unused RenderViewObserver::DidHandleTouchEvent.

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 66d2c0d45daa14ace02dee5f2bdec6516e07ae3f..00821249ad7e69d5e9a70957190db6ce330ecc9a 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -3075,10 +3075,6 @@ void RenderViewImpl::DidHandleMouseEvent(const WebMouseEvent& event) {
   FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleMouseEvent(event));
 }
 
-void RenderViewImpl::DidHandleTouchEvent(const WebTouchEvent& event) {
-  FOR_EACH_OBSERVER(RenderViewObserver, observers_, DidHandleTouchEvent(event));
-}
-
 bool RenderViewImpl::HasTouchEventHandlersAt(const gfx::Point& point) const {
   if (!webview())
     return false;