Move content/renderer input handling for web input events to ui

ui/events/blink/BUILD.gn

Index: ui/events/blink/BUILD.gn
diff --git a/ui/events/blink/BUILD.gn b/ui/events/blink/BUILD.gn
index 1fa7fef7b2de28d5183d9fc1ca320b3d5e14572c..acc1f80ff62070bbfb2816b9edbfae8e95c34f7c 100644
--- a/ui/events/blink/BUILD.gn
+++ b/ui/events/blink/BUILD.gn
@@ -6,9 +6,16 @@ source_set("blink") {
   sources = [
     "blink_event_util.cc",
     "blink_event_util.h",
+    "input_handler_proxy.cc",
+    "input_handler_proxy.h",
+    "input_handler_proxy_client.h",
+    "input_scroll_elasticity_controller.cc",
+    "input_scroll_elasticity_controller.h",
+    "synchronous_input_handler_proxy.h",
   ]
 
   deps = [
+    "//cc:cc",
     "//third_party/WebKit/public:blink_headers",
     "//ui/events",
     "//ui/events:gesture_detection",