Disable the hang dialog detector when showModalDialog is running.

content/browser/renderer_host/render_view_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_view_host_impl.h"
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 128 matching lines @@
       delegate_(delegate),
       instance_(static_cast<SiteInstanceImpl*>(instance)),
       waiting_for_drag_context_response_(false),
       enabled_bindings_(0),
       guest_(false),
       pending_request_id_(-1),
       navigations_suspended_(false),
       suspended_nav_message_(NULL),
       is_swapped_out_(swapped_out),
       run_modal_reply_msg_(NULL),
+      run_modal_opener_id_(MSG_ROUTING_NONE),
       is_waiting_for_beforeunload_ack_(false),
       is_waiting_for_unload_ack_(false),
       unload_ack_is_for_cross_site_transition_(false),
       are_javascript_messages_suppressed_(false),
       sudden_termination_allowed_(false),
       session_storage_namespace_(
           static_cast<SessionStorageNamespaceImpl*>(session_storage)),
       save_accessibility_tree_for_testing_(false),
       send_accessibility_updated_notifications_(false),
       render_view_termination_status_(base::TERMINATION_STATUS_STILL_RUNNING) {
@@ skipping 760 matching lines @@
   }
 
   return handled;
 }
 
 void RenderViewHostImpl::Shutdown() {
   // If we are being run modally (see RunModal), then we need to cleanup.
   if (run_modal_reply_msg_) {
     Send(run_modal_reply_msg_);
     run_modal_reply_msg_ = NULL;
+    RenderViewHostImpl* opener =
+        RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
+    if (opener) {
+      opener->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(
+          hung_renderer_delay_ms_));
+      // Balance out the decrement when we got created.
+      opener->increment_in_flight_event_count();
+    }
+    run_modal_opener_id_ = MSG_ROUTING_NONE;
   }
 
   RenderWidgetHostImpl::Shutdown();
 }
 
 bool RenderViewHostImpl::IsRenderView() const {
   return true;
 }
 
 void RenderViewHostImpl::CreateNewWindow(
@@ skipping 43 matching lines @@
 
 void RenderViewHostImpl::OnMsgShowFullscreenWidget(int route_id) {
   RenderViewHostDelegate::View* view = delegate_->GetViewDelegate();
   if (view) {
     if (!is_swapped_out_)
       view->ShowCreatedFullscreenWidget(route_id);
     Send(new ViewMsg_Move_ACK(route_id));
   }
 }
 
-void RenderViewHostImpl::OnMsgRunModal(IPC::Message* reply_msg) {
+void RenderViewHostImpl::OnMsgRunModal(int opener_id, IPC::Message* reply_msg) {
   DCHECK(!run_modal_reply_msg_);
   run_modal_reply_msg_ = reply_msg;
+  run_modal_opener_id_ = opener_id;
 
   content::RecordAction(UserMetricsAction("ShowModalDialog"));
 
+  RenderViewHostImpl* opener =
+      RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
+  opener->StopHangMonitorTimeout();
+  // The ack for the mouse down won't come until the dialog closes, so fake it
+  // so that we don't get a timeout.
+  opener->decrement_in_flight_event_count();
+
   // TODO(darin): Bug 1107929: Need to inform our delegate to show this view in
   // an app-modal fashion.
 }
 
 void RenderViewHostImpl::OnMsgRenderViewReady() {
   render_view_termination_status_ = base::TERMINATION_STATUS_STILL_RUNNING;
   WasResized();
   delegate_->RenderViewReady(this);
 }
 
@@ skipping 795 matching lines @@
   // can cause navigations to be ignored in OnMsgNavigate.
   is_waiting_for_beforeunload_ack_ = false;
   is_waiting_for_unload_ack_ = false;
 }
 
 void RenderViewHostImpl::ClearPowerSaveBlockers() {
   STLDeleteValues(&power_save_blockers_);
 }
 
 }  // namespace content