Disable raf alignment when the compositor doesn't generate begin frames.

content/renderer/input/input_event_filter_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
 #include <new>
 #include <tuple>
 #include <utility>
 #include <vector>
@@ skipping 241 matching lines @@
           ui::LatencyInfo(),
           ShouldBlockEventStream(events[i])
               ? InputEventDispatchType::DISPATCH_TYPE_BLOCKING
               : InputEventDispatchType::DISPATCH_TYPE_NON_BLOCKING));
     }
 
     AddMessagesToFilter(messages);
   }
 
   void RegisterRoute() {
-    input_event_queue_ =
-        new MainThreadEventQueue(this, main_task_runner_, &renderer_scheduler_);
+    input_event_queue_ = new MainThreadEventQueue(this, main_task_runner_,
+                                                  &renderer_scheduler_, true);
     filter_->RegisterRoutingID(kTestRoutingID, input_event_queue_);
   }
 
   InputEventAckState HandleInputEvent(
       const blink::WebCoalescedInputEvent& event,
       const ui::LatencyInfo& latency,
       InputEventDispatchType dispatch_type) override {
     message_recorder_.AppendEvent(event, dispatch_type);
     return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
   }
@@ skipping 328 matching lines @@
     const WebInputEvent& event = message.event();
     InputEventDispatchType dispatch_type = message.dispatch_type();
 
     EXPECT_EQ(kBlockingEvents[0].size(), event.size());
     EXPECT_TRUE(memcmp(&kBlockingEvents[0], &event, event.size()) == 0);
     EXPECT_EQ(InputEventDispatchType::DISPATCH_TYPE_BLOCKING, dispatch_type);
   }
 }
 
 }  // namespace content