Handle notification preferences intent from gear icon.

chrome/android/shell/java/AndroidManifest.xml.jinja2

 <?xml version="1.0" encoding="utf-8"?>
 
 <!-- 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.
  -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.chromium.chrome.shell">
@@ skipping 31 matching lines @@
             android:label="@string/app_name"
             android:supportsRtl="true">
         <activity android:name="org.chromium.chrome.shell.ChromeShellActivity"
                   android:launchMode="singleTask"
                   android:theme="@style/MainTheme"
                   android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
                   android:hardwareAccelerated="true">
               <intent-filter>
                   <action android:name="android.intent.action.MAIN" />
                   <category android:name="android.intent.category.LAUNCHER" />
+                  <category android:name="android.intent.category.NOTIFICATION_PREFERENCES" />
               </intent-filter>
         </activity>
         <activity android:name="org.chromium.sync.test.util.MockGrantCredentialsPermissionActivity"
                   android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </activity>
         <activity android:theme="@style/PreferencesTheme"
                 android:name="org.chromium.chrome.shell.preferences.ChromeShellPreferences"
                 android:configChanges="orientation|keyboardHidden|keyboard|screenSize"
                 android:label="@string/preferences"
                 android:exported="false">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.NOTIFICATION_PREFERENCES" />
-            </intent-filter>
         </activity>
 
         <!-- The following service entries exist in order to allow us to
              start more than one sandboxed process. -->
 
         <!-- NOTE: If you change the value of "android:process" for the below services,
              you also need to update kHelperProcessExecutableName in chrome_constants.cc. -->
         {% set num_sandboxed_services = 20 %}
         <meta-data android:name="org.chromium.content.browser.NUM_SANDBOXED_SERVICES"
                    android:value="{{ num_sandboxed_services }}"/>
@@ skipping 110 matching lines @@
             </intent-filter>
         </receiver>
 
         <meta-data android:name="org.chromium.content.browser.SMART_CLIP_PROVIDER"
                    android:value="org.chromium.content.browser.SmartClipProvider" />
         <meta-data android:name="org.chromium.chrome.browser.SERVICE_TAB_LAUNCHER"
                    android:value="org.chromium.chrome.shell.ChromeShellServiceTabLauncher" />
 
     </application>
 </manifest>