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

chrome/browser/ui/browser.cc

 // Copyright 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 "chrome/browser/ui/browser.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif  // defined(OS_WIN)
@@ skipping 831 matching lines @@
 
 void Browser::UpdateDownloadShelfVisibility(bool visible) {
   if (GetStatusBubble())
     GetStatusBubble()->UpdateDownloadShelfVisibility(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
   // before load.
   if (contents->NeedToFireBeforeUnload()) {
     // If the page has unload listeners, then we tell the renderer to fire
     // them. Once they have fired, we'll get a message back saying whether
     // to proceed closing the page or not, which sends us back to this method
     // with the NeedToFireBeforeUnload bit cleared.
     contents->GetRenderViewHost()->FirePageBeforeUnload(false);
@@ skipping 577 matching lines @@
   return false;
 }
 
 gfx::Rect Browser::GetRootWindowResizerRect() const {
   return window_->GetRootWindowResizerRect();
 }
 
 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);
   } else {
     *proceed_to_fire_unload =
         unload_controller_->BeforeUnloadFired(web_contents, proceed);
   }
 }
 
 bool Browser::ShouldFocusLocationBarByDefault(WebContents* source) {
@@ skipping 841 matching lines @@
   if (contents && !allow_js_access) {
     contents->web_contents()->GetController().LoadURL(
         target_url,
         content::Referrer(),
         content::PAGE_TRANSITION_LINK,
         std::string());  // No extra headers.
   }
 
   return contents != NULL;
 }