DevTools: Add 'Enable Developer Tools' option into the Advanced tab. Hide dev...

chrome/browser/debugger/devtools_manager.cc

Index: chrome/browser/debugger/devtools_manager.cc
===================================================================
--- chrome/browser/debugger/devtools_manager.cc	(revision 16977)
+++ chrome/browser/debugger/devtools_manager.cc	(working copy)
@@ -6,9 +6,12 @@
 
 #include "chrome/browser/debugger/devtools_window.h"
 #include "chrome/browser/debugger/devtools_client_host.h"
+#include "chrome/browser/profile.h"
 #include "chrome/browser/renderer_host/render_view_host.h"
 #include "chrome/browser/tab_contents/site_instance.h"
 #include "chrome/common/devtools_messages.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/common/pref_service.h"
 #include "googleurl/src/gurl.h"
 
 DevToolsManager::DevToolsManager() {
@@ -85,6 +88,7 @@
 }
 
 void DevToolsManager::OpenDevToolsWindow(RenderViewHost* inspected_rvh) {
+  EnableDevToolsInPrefs(inspected_rvh);
   DevToolsClientHost* host = GetDevToolsClientHostFor(inspected_rvh);
   if (!host) {
     host = new DevToolsWindow(
@@ -165,3 +169,13 @@
     inspected_rvh->Send(m);
   }
 }
+
+void DevToolsManager::EnableDevToolsInPrefs(RenderViewHost* inspected_rvh) {
+  Profile* profile = inspected_rvh->site_instance()->browsing_instance()->
+      profile();
+  if (!profile->GetPrefs()->GetBoolean(prefs::kWebKitDeveloperExtrasEnabled)) {
+    //TODO(pfeldman): Show message box with warning to the user.
+    profile->GetPrefs()->SetBoolean(prefs::kWebKitDeveloperExtrasEnabled,
+        true);
+  }
+}