Disable incognito link if parental control is on

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
diff --git a/chrome/browser/profiles/profile_io_data.cc b/chrome/browser/profiles/profile_io_data.cc
index 6e14ddcf3471d3f2ede004a0225897cbe5f23048..353d458b5a98109eebb370d194e1c154d70e5aad 100644
--- a/chrome/browser/profiles/profile_io_data.cc
+++ b/chrome/browser/profiles/profile_io_data.cc
@@ -118,7 +118,12 @@
 #include "net/ssl/client_cert_store_nss.h"
 #endif
 
+#if defined(OS_ANDROID)
+#include "chrome/browser/android/chromium_application.h"
+#endif  // OS_ANDROID
+
 #if defined(OS_WIN)
+#include "base/win/metro.h"
 #include "net/ssl/client_cert_store_win.h"
 #endif
 
@@ -132,6 +137,10 @@ using content::ResourceContext;
 
 namespace {
 
+#if defined(OS_WIN)
+bool g_parental_control_on = false;

[mmenke, 2014/06/17 20:41:44]

Why not make this a member of ProfileIOData?

[mmenke, 2014/06/17 20:44:13]

Alternatively, put it in some other file (metro.h?  I don't know), make sure
it's initialized on startup, and make a static accessor for it, that can be
called on any thread.  It does seem kind of odd to have a non-per-profile piece
of information in ProfileIOData, just so it can be accessed on the IO thread.

[guohui, 2014/06/18 19:36:38]

Done.

+#endif // OS_WIN
+
 #if defined(DEBUG_DEVTOOLS)
 bool IsSupportedDevToolsURL(const GURL& url, base::FilePath* path) {
   std::string bundled_path_prefix(chrome::kChromeUIDevToolsBundledPath);
@@ -464,6 +473,10 @@ void ProfileIOData::InitializeOnUIThread(Profile* profile) {
   }
 #endif
 
+#if defined(OS_WIN)
+  g_parental_control_on = base::win::IsParentalControlActivityLoggingOn();
+#endif // OS_WIN
+
   incognito_availibility_pref_.Init(
       prefs::kIncognitoModeAvailability, pref_service);
   incognito_availibility_pref_.MoveToThread(io_message_loop_proxy);
@@ -752,6 +765,16 @@ bool ProfileIOData::IsOffTheRecord() const {
       || profile_type() == Profile::GUEST_PROFILE;
 }
 
+bool ProfileIOData::ArePlatformParentalControlsEnabledCached() const {
+#if defined(OS_WIN)
+  return g_parental_control_on;
+#elif defined(OS_ANDROID)
+  return chrome::android::ChromiumApplication::AreParentalControlsEnabled();
+#else
+  return false;
+#endif
+}
+
 void ProfileIOData::InitializeMetricsEnabledStateOnUIThread() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 #if defined(OS_CHROMEOS)