Revert of Revert of Ignore account management actions after onSaveIns…

…tanceState (patchset #1 id:1 of https://codereview.chromium.org/1143933005/)

Reason for revert:
Red herring; the actual reason for "non-working" "sign-out" and "go incognito" buttons was incorrect (absent) initialization of upstream-split parts of AccountManagementFragment.

Original issue's description:
> Revert of Ignore account management actions after onSaveInstanceState (patchset #1 id:1 of https://codereview.chromium.org/1144113005/)
>
> Reason for revert:
> Nopes, didn't help, but made things worse: running another activity renders the dialog fragment unusable.
>
> Original issue's description:
> > Ignore account management actions after onSaveInstanceState
> >
> > BUG=490629
> >
> > Committed: https://crrev.com/01ef47a29ff30d2edf7e46fe70000cf5a54a4f2b
> > Cr-Commit-Position: refs/heads/master@{#331909}
>
> [email protected]
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=490629
>
> Committed: https://crrev.com/c6f70ebd508e0245eae4ecc026ef5316a617493e
> Cr-Commit-Position: refs/heads/master@{#332067}

[email protected]
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=490629

Review URL: https://codereview.chromium.org/1171763002

Cr-Commit-Position: refs/heads/master@{#333344}
(cherry picked from commit 4e82fd7)

Review URL: https://codereview.chromium.org/1173473002.

Cr-Commit-Position: refs/branch-heads/2403@{crosswalk-project#251}
Cr-Branched-From: f54b809-refs/heads/master@{#330231}

chrome/android/java/src/org/chromium/chrome/browser/signin/AccountManagementFragment.java

@@ -118,6 +118,8 @@ public class AccountManagementFragment extends PreferenceFragment
     private ArrayList<Preference> mAccountsListPreferences = new ArrayList<Preference>();
     private Preference mPrimaryAccountPreference;
 
+    private boolean mSaveInstanceStateWasCalled;
+
     private AccountManagementFragmentDelegate getDelegate() {
         return AccountManagementScreenHelper.getDelegate();
     }
@@ -157,6 +159,12 @@ public void onPause() {
         ProfileSyncService.get(getActivity()).removeSyncStateChangedListener(this);
     }
 
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        mSaveInstanceStateWasCalled = true;
+    }
+
     /**
      * Initiate fetching the user accounts data (images and the full name).
      * Fetched data will be sent to observers of ProfileDownloader.
@@ -219,6 +227,7 @@ private void configureSignOutSwitch() {
                 @Override
                 public boolean onPreferenceChange(Preference preference, Object newValue) {
                     if ((boolean) newValue) return true;
+                    if (mSaveInstanceStateWasCalled) return false;
 
                     if (ChromeSigninController.get(getActivity()).isSignedIn()
                             && getSignOutAllowedPreferenceValue(getActivity())) {
@@ -252,6 +261,8 @@ private void configureAddAccountPreference(String fullName) {
             addAccount.setOnPreferenceClickListener(new OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {
+                    if (mSaveInstanceStateWasCalled) return false;
+
                     AccountManagementScreenHelper.logEvent(
                             ProfileAccountManagementMetrics.ADD_ACCOUNT,
                             mGaiaServiceType);
@@ -284,6 +295,7 @@ private void configureGoIncognitoPreferences(String fullName) {
             goIncognito.setOnPreferenceClickListener(new OnPreferenceClickListener() {
                 @Override
                 public boolean onPreferenceClick(Preference preference) {
+                    if (mSaveInstanceStateWasCalled) return false;
                     if (!PrefServiceBridge.getInstance().isIncognitoModeEnabled()) return false;
 
                     AccountManagementFragmentDelegate delegate = getDelegate();
@@ -389,6 +401,8 @@ private void updateAccountsList() {
                 pref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
                     @Override
                     public boolean onPreferenceClick(Preference preference) {
+                        if (mSaveInstanceStateWasCalled) return false;
+
                         AccountManagementScreenHelper.logEvent(
                                 ProfileAccountManagementMetrics.CLICK_PRIMARY_ACCOUNT,
                                 mGaiaServiceType);