[ios] Removed CookieStoreIOS::SetCookiePolicy.

ios/net/cookies/cookie_store_ios.mm

Index: ios/net/cookies/cookie_store_ios.mm
diff --git a/ios/net/cookies/cookie_store_ios.mm b/ios/net/cookies/cookie_store_ios.mm
index edbbb82037aa3f9a193963d71f16645f2669682b..a6d844cd8d59121fbfadaf42fe317ddcc6c3a402 100644
--- a/ios/net/cookies/cookie_store_ios.mm
+++ b/ios/net/cookies/cookie_store_ios.mm
@@ -61,7 +61,6 @@ class NotificationTrampoline {
 
   // Notify the observers.
   void NotifyCookiesChanged();
-  void NotifyCookiePolicyChanged();
 
  private:
   NotificationTrampoline();
@@ -95,11 +94,6 @@ void NotificationTrampoline::NotifyCookiesChanged() {
     observer.OnSystemCookiesChanged();
 }
 
-void NotificationTrampoline::NotifyCookiePolicyChanged() {
-  for (auto& observer : observer_list_)
-    observer.OnSystemCookiePolicyChanged();
-}
-
 NotificationTrampoline::NotificationTrampoline() {
 }
 
@@ -317,19 +311,6 @@ CookieStoreIOS::~CookieStoreIOS() {
 }
 
 // static
-void CookieStoreIOS::SetCookiePolicy(CookiePolicy setting) {
-  NSHTTPCookieAcceptPolicy policy = (setting == ALLOW)
-                                        ? NSHTTPCookieAcceptPolicyAlways
-                                        : NSHTTPCookieAcceptPolicyNever;
-  NSHTTPCookieStorage* store = [NSHTTPCookieStorage sharedHTTPCookieStorage];
-  NSHTTPCookieAcceptPolicy current_policy = [store cookieAcceptPolicy];
-  if (current_policy == policy)
-    return;
-  [store setCookieAcceptPolicy:policy];
-  NotificationTrampoline::GetInstance()->NotifyCookiePolicyChanged();
-}
-
-// static
 std::unique_ptr<CookieStoreIOS> CookieStoreIOS::CreateCookieStore(
     NSHTTPCookieStorage* cookie_storage) {
   DCHECK(cookie_storage);
@@ -767,44 +748,6 @@ void CookieStoreIOS::ClearSystemStore() {
   creation_time_manager_->Clear();
 }
 
-void CookieStoreIOS::OnSystemCookiePolicyChanged() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  // If the CookieStoreIOS is not synchronized or is not backed by
-  // |NSHTTPCookieStorage sharedHTTPCookieStorage| this callback is irrelevant.
-  if (synchronization_state_ == NOT_SYNCHRONIZED ||
-      system_store_ != [NSHTTPCookieStorage sharedHTTPCookieStorage]) {
-    return;
-  }
-
-  NSHTTPCookieAcceptPolicy policy =
-      [system_store_ cookieAcceptPolicy];
-  if (policy == NSHTTPCookieAcceptPolicyAlways) {
-    // If cookies are disabled, the system cookie store should be empty.
-    DCHECK(![[system_store_ cookies] count]);
-    DCHECK(synchronization_state_ != SYNCHRONIZING);
-    synchronization_state_ = SYNCHRONIZING;
-    cookie_monster_->GetAllCookiesAsync(base::Bind(
-        &CookieStoreIOS::AddCookiesToSystemStore, weak_factory_.GetWeakPtr()));
-  } else {
-    DCHECK_EQ(NSHTTPCookieAcceptPolicyNever, policy);
-    // FlushStore() does not write the cookies to disk when they are disabled.
-    // Explicitly copy them.
-    WriteToCookieMonster([system_store_ cookies]);
-    FlushStore(base::Closure());
-    ClearSystemStore();
-    if (synchronization_state_ == SYNCHRONIZING) {
-      // If synchronization was in progress, abort it and leave the cookie store
-      // empty.
-      // Temporarily toggle the synchronization state so that pending tasks are
-      // redirected to cookie_monster_ and can complete normally.
-      synchronization_state_ = NOT_SYNCHRONIZED;
-      RunAllPendingTasks();
-      synchronization_state_ = SYNCHRONIZED;
-    }
-  }
-}
-
 void CookieStoreIOS::SetSynchronizedWithSystemStore(bool synchronized) {
   DCHECK(thread_checker_.CalledOnValidThread());