DevTools: Replace .allow-devtools-edit file check with confirmation infobar.

chrome/browser/devtools/devtools_window.cc

Index: chrome/browser/devtools/devtools_window.cc
diff --git a/chrome/browser/devtools/devtools_window.cc b/chrome/browser/devtools/devtools_window.cc
index bc28c3e88e8e2e082353ea752c82e5fcac877854..89f543a8c3546178e8416289123c77d8759a7f6a 100644
--- a/chrome/browser/devtools/devtools_window.cc
+++ b/chrome/browser/devtools/devtools_window.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/file_select_helper.h"
+#include "chrome/browser/infobars/confirm_infobar_delegate.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
@@ -66,6 +67,7 @@ base::LazyInstance<DevToolsWindowList>::Leaky
 }  // namespace
 
 using base::Bind;
+using base::Callback;
 using content::DevToolsAgentHost;
 using content::DevToolsClientHost;
 using content::DevToolsManager;
@@ -122,6 +124,51 @@ class DevToolsWindow::FrontendWebContentsObserver
   }
 };
 
+typedef Callback<void()> InfoBarCallback;
+
+class DevToolsConfirmInfoBarDelegate : public ConfirmInfoBarDelegate {
+ public:
+  DevToolsConfirmInfoBarDelegate(
+      InfoBarService* infobar_service,
+      const InfoBarCallback& accept_callback,
+      const InfoBarCallback& cancel_callback,
+      string16 message)
+      : ConfirmInfoBarDelegate(infobar_service),
+        accept_callback_(accept_callback),
+        cancel_callback_(cancel_callback),
+        message_(message),
+        callback_sent(false) {
+  }
+
+  virtual string16 GetMessageText() const {
+    return message_;
+  }
+
+  virtual bool Accept() {
+    callback_sent = true;
+    accept_callback_.Run();
+    return true;
+  }
+
+  virtual bool Cancel() {
+    callback_sent = true;
+    cancel_callback_.Run();
+    return true;
+  }
+
+ private:
+  virtual ~DevToolsConfirmInfoBarDelegate() {
+    if (!callback_sent) {
+      cancel_callback_.Run();
+    }
+  }
+
+  InfoBarCallback accept_callback_;
+  InfoBarCallback cancel_callback_;
+  string16 message_;
+  bool callback_sent;
+};
+
 // static
 std::string DevToolsWindow::GetDevToolsWindowPlacementPrefKey() {
   std::string wp_key;
@@ -980,7 +1027,9 @@ void DevToolsWindow::RequestFileSystems() {
 void DevToolsWindow::AddFileSystem() {
   CHECK(web_contents_->GetURL().SchemeIs(chrome::kChromeDevToolsScheme));
   file_helper_->AddFileSystem(
-      Bind(&DevToolsWindow::FileSystemAdded, weak_factory_.GetWeakPtr()));
+      Bind(&DevToolsWindow::FileSystemAdded, weak_factory_.GetWeakPtr()),
+      Bind(&DevToolsWindow::ShowDevToolsConfirmInfoBar,
+           weak_factory_.GetWeakPtr()));
 }
 
 void DevToolsWindow::RemoveFileSystem(const std::string& file_system_path) {
@@ -1012,9 +1061,8 @@ void DevToolsWindow::FileSystemsLoaded(
 }
 
 void DevToolsWindow::FileSystemAdded(
-    std::string error_string,
     const DevToolsFileHelper::FileSystem& file_system) {
-  StringValue error_string_value(error_string);
+  StringValue error_string_value("");
   DictionaryValue* file_system_value = NULL;
   if (!file_system.file_system_path.empty())
     file_system_value = CreateFileSystemValue(file_system);
@@ -1025,6 +1073,26 @@ void DevToolsWindow::FileSystemAdded(
     delete file_system_value;
 }
 
+void DevToolsWindow::ShowDevToolsConfirmInfoBar(
+    const string16& message,
+    const InfoBarCallback& accept_callback,
+    const InfoBarCallback& cancel_callback) {
+  InfoBarService* infobar_service = IsDocked() ?
+      InfoBarService::FromWebContents(GetInspectedWebContents()) :
+      InfoBarService::FromWebContents(web_contents_);
+
+  if (infobar_service) {
+    infobar_service->AddInfoBar(scoped_ptr<InfoBarDelegate>(
+        new DevToolsConfirmInfoBarDelegate(
+            infobar_service,
+            accept_callback,
+            cancel_callback,
+            message)));
+  } else {
+    cancel_callback.Run();
+  }
+}
+
 content::JavaScriptDialogManager* DevToolsWindow::GetJavaScriptDialogManager() {
   content::WebContents* inspected_web_contents = GetInspectedWebContents();
   if (inspected_web_contents && inspected_web_contents->GetDelegate()) {