DevTools: Do not close devtools if there are dirty files in workspace

chrome/browser/ui/unload_controller.cc

Index: chrome/browser/ui/unload_controller.cc
diff --git a/chrome/browser/ui/unload_controller.cc b/chrome/browser/ui/unload_controller.cc
index 3759839be3d1690b8d0753fff9d431907c3be874..856ad7d8ea4a50ab6300f4b755111e327769bd9f 100644
--- a/chrome/browser/ui/unload_controller.cc
+++ b/chrome/browser/ui/unload_controller.cc
@@ -6,6 +6,7 @@
 
 #include "base/message_loop/message_loop.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
@@ -121,7 +122,8 @@ bool UnloadController::TabsNeedBeforeUnloadFired() {
       content::WebContents* contents =
           browser_->tab_strip_model()->GetWebContentsAt(i);
       if (!ContainsKey(tabs_needing_unload_fired_, contents) &&
-          contents->NeedToFireBeforeUnload()) {
+          (contents->NeedToFireBeforeUnload() ||
+          DevToolsWindow::GetInstanceForInspectedTab(contents))) {
         tabs_needing_before_unload_fired_.insert(contents);
       }
     }
@@ -218,7 +220,12 @@ void UnloadController::ProcessPendingTabs() {
     // Null check render_view_host here as this gets called on a PostTask and
     // the tab's render_view_host may have been nulled out.
     if (web_contents->GetRenderViewHost()) {
-      web_contents->GetRenderViewHost()->FirePageBeforeUnload(false);
+      DevToolsWindow* devtools_window =
+          DevToolsWindow::GetInstanceForInspectedTab(web_contents);
+      if (devtools_window)
+        devtools_window->InspectedPageWillClose();
+      else
+        web_contents->GetRenderViewHost()->FirePageBeforeUnload(false);
     } else {
       ClearUnloadState(web_contents, true);
     }
@@ -256,6 +263,13 @@ void UnloadController::CancelWindowClose() {
   // Closing of window can be canceled from a beforeunload handler.
   DCHECK(is_attempting_to_close_browser_);
   tabs_needing_before_unload_fired_.clear();
+  for (UnloadListenerSet::iterator it = tabs_needing_unload_fired_.begin();
+      it != tabs_needing_unload_fired_.end(); ++it) {
+    DevToolsWindow* dev_tools_window =
+        DevToolsWindow::GetInstanceForInspectedTab(*it);
+    if (dev_tools_window)
+      dev_tools_window->InspectedPageCancelClose();
+  }
   tabs_needing_unload_fired_.clear();
   if (is_calling_before_unload_handlers()) {
     base::Callback<void(bool)> on_close_confirmed = on_close_confirmed_;