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

chrome/browser/ui/tabs/tab_strip_model.cc

Index: chrome/browser/ui/tabs/tab_strip_model.cc
diff --git a/chrome/browser/ui/tabs/tab_strip_model.cc b/chrome/browser/ui/tabs/tab_strip_model.cc
index fa83e5c85117558c7ccb2814144e59d00dbe0b53..74d1e24757fdcbf30adb666c5bb1c15d4a0a7b94 100644
--- a/chrome/browser/ui/tabs/tab_strip_model.cc
+++ b/chrome/browser/ui/tabs/tab_strip_model.cc
@@ -13,6 +13,7 @@
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/browser_shutdown.h"
 #include "chrome/browser/defaults.h"
+#include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/extensions/tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
@@ -1096,6 +1097,8 @@ bool TabStripModel::InternalCloseTabs(const std::vector<int>& indices,
     std::map<content::RenderProcessHost*, size_t> processes;
     for (size_t i = 0; i < indices.size(); ++i) {
       WebContents* closing_contents = GetWebContentsAtImpl(indices[i]);
+      if (DevToolsWindow::GetInstanceForInspectedTab(closing_contents))
+        continue;
       content::RenderProcessHost* process =
           closing_contents->GetRenderProcessHost();
       ++processes[process];