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 2056b53aa9aa3ad4c4a564706690a838d6fa7325..410194c876efed43998f1cbb5a3adcedd684f1f7 100644
--- a/chrome/browser/ui/browser.cc
+++ b/chrome/browser/ui/browser.cc
@@ -849,6 +849,13 @@ void Browser::UpdateDownloadShelfVisibility(bool visible) {
 
 // static
 bool Browser::RunUnloadEventsHelper(WebContents* contents) {
+  // If there's a devtools window attached to the web contents,
+  // then we would like to run its beforeunload handlers first.
+  DevToolsWindow* dev_tools_window =
+      DevToolsWindow::GetInstanceForInspectedTab(contents);
+  if (dev_tools_window && dev_tools_window->InspectedPageWillClose()) {
+    return true;
+  }
   // If the WebContents is not connected yet, then there's no unload
   // handler we can fire even if the WebContents has an unload listener.
   // One case where we hit this is in a tab that has an infinite loop
@@ -1446,6 +1453,16 @@ 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;
+  }
+  DevToolsWindow* dev_tools_window =
+      DevToolsWindow::GetInstanceForInspectedTab(web_contents);
+  if (dev_tools_window && !proceed)
+    dev_tools_window->InspectedPageCancelClose();
+
   if (IsFastTabUnloadEnabled()) {
     *proceed_to_fire_unload =
         fast_unload_controller_->BeforeUnloadFired(web_contents, proceed);