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

chrome/browser/ui/browser.cc

Index: chrome/browser/ui/browser.cc
diff --git a/chrome/browser/ui/browser.cc b/chrome/browser/ui/browser.cc
index 7aa35da44a634db564ac5d9a95e6fc081c400392..6d7e020f0d8c9698026a14e5f331f451e14089d5 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -832,6 +832,13 @@ void Browser::UpdateDownloadShelfVisibility(bool visible) {
 ///////////////////////////////////////////////////////////////////////////////
 
 // static
+bool Browser::CanFastShutdownWebContents(content::WebContents* contents) {
+  if (IsFastTabUnloadEnabled())
+    return chrome::FastUnloadController::CanFastShutdownWebContents(contents);
+  return chrome::UnloadController::CanFastShutdownWebContents(contents);
+}
+
+// static
 bool Browser::RunUnloadEventsHelper(WebContents* contents) {
   if (IsFastTabUnloadEnabled())
     return chrome::FastUnloadController::RunUnloadEventsHelper(contents);
@@ -1430,6 +1437,10 @@ gfx::Rect Browser::GetRootWindowResizerRect() const {
 void Browser::BeforeUnloadFired(WebContents* web_contents,
                                 bool proceed,
                                 bool* proceed_to_fire_unload) {
+  if (is_devtools() && DevToolsWindow::HandleBeforeUnload(web_contents,
+        proceed, proceed_to_fire_unload))
+    return;
+
   if (IsFastTabUnloadEnabled()) {
     *proceed_to_fire_unload =
         fast_unload_controller_->BeforeUnloadFired(web_contents, proceed);