build: remove duplicate devtools sources (#14522)

* build: remove duplicate devtools sources

* build: create separate target for chrome sources

* Move sources that are always depended on by electron,
  starting with security_state_tab_helper.{cc|h}
* Add //component/strings to pak for devtools security tab

* fix: allow specifying type of the added filesystem.

https://chromium-review.googlesource.com/c/chromium/src/+/729250

* fix: do not index excluded folders

https://chromium-review.googlesource.com/c/chromium/src/+/972579

brightray/browser/views/inspectable_web_contents_view_views.h

@@ -2,8 +2,8 @@
 #define BRIGHTRAY_BROWSER_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
 
 #include "base/compiler_specific.h"
-#include "brightray/browser/devtools_contents_resizing_strategy.h"
 #include "brightray/browser/inspectable_web_contents_view.h"
+#include "chrome/browser/devtools/devtools_contents_resizing_strategy.h"
 #include "ui/views/view.h"
 
 namespace views {