Don't restart the hang renderer timeout on messages ack'd from the compositor thread.

content/renderer/mus/compositor_mus_connection_unittest.cc

 // Copyright 2016 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 "content/renderer/mus/compositor_mus_connection.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
@@ skipping 188 matching lines @@
     content::RenderWidget* render_widget)
     : content::RenderWidgetInputHandler(render_widget, render_widget),
       delegate_(nullptr),
       state_(content::InputEventAckState::INPUT_EVENT_ACK_STATE_UNKNOWN) {}
 
 void TestRenderWidgetInputHandler::HandleInputEvent(
     const blink::WebInputEvent& input_event,
     const ui::LatencyInfo& latency_info,
     content::InputEventDispatchType dispatch_type) {
   if (delegate_) {
-    std::unique_ptr<content::InputEventAck> ack(
-        new content::InputEventAck(input_event.type, state_));
+    std::unique_ptr<content::InputEventAck> ack(new content::InputEventAck(
+        content::InputEventAckLocation::

[dcheng, 2016/11/04 18:24:49]

Nit: though it's not really changed by this CL, consider moving this unnamed
namespace into namespace content below (that way, we won't have to specify the
content namespace so much in this code)

[dtapuska, 2016/11/04 20:14:16]

Done.

+            INPUT_EVENT_ACK_LOCATION_COMPOSITOR_THREAD,
+        input_event.type, state_));
     delegate_->OnInputEventAck(std::move(ack));
   }
 }
 
 }  // namespace
 
 namespace content {
 
 // Test suite for CompositorMusConnection, this does not setup a full renderer
 // environment. This does not establish a connection to a mus server, nor does
@@ skipping 274 matching lines @@
   EXPECT_FALSE(ack_callback.get());
 
   VerifyAndRunQueues(true, true);
 
   // The ack callback should have been called
   EXPECT_TRUE(test_callback->called());
   EXPECT_EQ(EventResult::HANDLED, test_callback->result());
 }
 
 }  // namespace content