Replace "nested message loop" with "nested run loop" in comments.

content/browser/renderer_host/render_widget_host_impl.cc

 // Copyright (c) 2012 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/browser/renderer_host/render_widget_host_impl.h"
 
 #include <math.h>
 
 #include <set>
 #include <tuple>
@@ skipping 911 matching lines @@
   // Request that the renderer produce a frame of the right size, if it
   // hasn't been requested already.
   if (!repaint_ack_pending_ && !resize_ack_pending_) {
     repaint_start_time_ = TimeTicks::Now();
     repaint_ack_pending_ = true;
     TRACE_EVENT_ASYNC_BEGIN0(
         "renderer_host", "RenderWidgetHostImpl::repaint_ack_pending_", this);
     Send(new ViewMsg_Repaint(routing_id_, view_size));
   }
 
-  // Pump a nested message loop until we time out or get a frame of the right
+  // Pump a nested run loop until we time out or get a frame of the right
   // size.
   TimeTicks start_time = TimeTicks::Now();
   TimeDelta time_left = TimeDelta::FromMilliseconds(kPaintMsgTimeoutMS);
   TimeTicks timeout_time = start_time + time_left;
   while (1) {
     TRACE_EVENT0("renderer_host", "WaitForSurface::WaitForSingleTaskToRun");
     if (ui::WindowResizeHelperMac::Get()->WaitForSingleTaskToRun(time_left)) {
       // For auto-resized views, current_size_ determines the view_size and it
       // may have changed during the handling of an UpdateRect message.
       if (auto_resize_enabled_)
@@ skipping 1686 matching lines @@
   RenderProcessHost* rph = GetProcess();
   for (std::vector<IPC::Message>::const_iterator i = messages.begin();
        i != messages.end(); ++i) {
     rph->OnMessageReceived(*i);
     if (i->dispatch_error())
       rph->OnBadMessageReceived(*i);
   }
 }
 
 }  // namespace content