[remoting android] Explicitly add 'exported' attribute in the manifest.

remoting/android/java/AndroidManifest.xml.jinja2

Index: remoting/android/java/AndroidManifest.xml.jinja2
diff --git a/remoting/android/java/AndroidManifest.xml.jinja2 b/remoting/android/java/AndroidManifest.xml.jinja2
index 976943f65b9eeb9d320fd4a1d0ba6c0fef56f4aa..cc15959c1f581b9b6505e0071317691d8b7cab81 100644
--- a/remoting/android/java/AndroidManifest.xml.jinja2
+++ b/remoting/android/java/AndroidManifest.xml.jinja2
@@ -14,10 +14,12 @@
         <meta-data
                 android:name="com.google.android.gms.version"
                 android:value="@integer/google_play_services_version"/>
-        <activity android:name="org.chromium.chromoting.Chromoting"
-                android:configChanges="orientation|screenSize"
-                android:theme="@style/BaseTheme.NavigationDrawer"
-                android:launchMode="singleTask">
+        <activity
+            android:name="org.chromium.chromoting.Chromoting"
+            android:configChanges="orientation|screenSize"
+            android:exported="true"
+            android:theme="@style/BaseTheme.NavigationDrawer"
+            android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
                 <category android:name="android.intent.category.LAUNCHER"/>
@@ -26,6 +28,7 @@
         <activity
             android:name="org.chromium.chromoting.ThirdPartyTokenFetcher$OAuthRedirectActivity"
             android:enabled="false"
+            android:exported="true"
             android:noHistory="true">
             <!-- TODO(kevinp): suppress once crbug.com/501593 is fixed. -->
             <!--suppress AppIndexingError -->
@@ -37,12 +40,17 @@
                 <data android:path="/oauthredirect/"/>
             </intent-filter>
         </activity>
-        <activity android:name="org.chromium.chromoting.Desktop"
-                android:windowSoftInputMode="adjustResize"/>
-        <activity android:name="org.chromium.chromoting.help.HelpActivity"
-                android:configChanges="orientation|screenSize"
-                android:uiOptions="splitActionBarWhenNarrow">
-        </activity>
-        <activity android:name="org.chromium.chromoting.help.CreditsActivity"/>
+        <activity
+            android:name="org.chromium.chromoting.Desktop"
+            android:exported="false"
+            android:windowSoftInputMode="adjustResize"/>
+        <activity
+            android:name="org.chromium.chromoting.help.HelpActivity"
+            android:configChanges="orientation|screenSize"
+            android:exported="false"
+            android:uiOptions="splitActionBarWhenNarrow"/>
+        <activity
+            android:name="org.chromium.chromoting.help.CreditsActivity"
+            android:exported="false"/>
     </application>
 </manifest>