[Android] Update Protected Media Identifier Settings UI to reflect exceptions.

chrome/android/java/src/org/chromium/chrome/browser/preferences/ProtectedContentPreferences.java

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser.preferences;
-
-import android.os.Bundle;
-import android.preference.Preference;
-import android.preference.Preference.OnPreferenceChangeListener;
-import android.preference.Preference.OnPreferenceClickListener;
-import android.preference.PreferenceFragment;
-import android.widget.Toast;
-
-import org.chromium.chrome.R;
-import org.chromium.content.browser.MediaDrmCredentialManager;
-import org.chromium.content.browser.MediaDrmCredentialManager.MediaDrmCredentialManagerCallback;
-
-/**
- * Fragment to keep track of the protected content preferences.
- */
-public class ProtectedContentPreferences extends PreferenceFragment implements
-        ProtectedContentResetCredentialConfirmDialogFragment.Listener {
-
-    private static final String PREF_RESET_DEVICE_CREDENTIALS_BUTTON =
-            "reset_device_credentials_button";
-    private static final String PREF_PROTECTED_CONTENT_SWITCH = "protected_content_switch";
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        addPreferencesFromResource(R.xml.protected_content_preferences);
-        getActivity().setTitle(R.string.protected_content);
-
-        ChromeSwitchPreference protectedContentSwitch =
-                (ChromeSwitchPreference) findPreference(PREF_PROTECTED_CONTENT_SWITCH);
-
-        boolean isProtectedContentEnabled =
-                PrefServiceBridge.getInstance().isProtectedMediaIdentifierEnabled();
-        protectedContentSwitch.setChecked(isProtectedContentEnabled);
-
-        protectedContentSwitch.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
-            @Override
-            public boolean onPreferenceChange(Preference preference, Object newValue) {
-                PrefServiceBridge.getInstance().setProtectedMediaIdentifierEnabled(
-                        (boolean) newValue);
-                return true;
-            }
-        });
-
-
-        ButtonPreference resetDeviceCredentialsButton = (ButtonPreference)
-                findPreference(PREF_RESET_DEVICE_CREDENTIALS_BUTTON);
-
-        resetDeviceCredentialsButton.setOnPreferenceClickListener(new OnPreferenceClickListener(){
-            @Override
-            public boolean onPreferenceClick(Preference preference) {
-                new ProtectedContentResetCredentialConfirmDialogFragment(
-                        ProtectedContentPreferences.this).show(getFragmentManager(), null);
-                return true;
-            }
-        });
-    }
-
-    @Override
-    public void resetDeviceCredential() {
-        MediaDrmCredentialManager.resetCredentials(new MediaDrmCredentialManagerCallback() {
-            @Override
-            public void onCredentialResetFinished(boolean succeeded) {
-                if (!succeeded) {
-                    String message = getString(
-                            R.string.protected_content_reset_failed);
-                    Toast.makeText(getActivity(), message, Toast.LENGTH_SHORT).show();
-                }
-            }
-        });
-    }
-}