Fix handling of content URIs by demo apps

PiperOrigin-RevId: 453510883
(cherry picked from commit 96274bfd)

demos/main/src/main/AndroidManifest.xml

@@ -79,6 +79,12 @@
         <data android:scheme="ssai"/>
       </intent-filter>
       <intent-filter>
+        <action android:name="androidx.media3.demo.main.action.VIEW"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <data android:scheme="content"/>
+        <data android:mimeType="*/*"/>
+      </intent-filter>
+      <intent-filter>
         <action android:name="androidx.media3.demo.main.action.VIEW_LIST"/>
         <category android:name="android.intent.category.DEFAULT"/>
       </intent-filter>

demos/surface/src/main/AndroidManifest.xml

@@ -43,6 +43,12 @@
         <data android:scheme="asset"/>
         <data android:scheme="file"/>
       </intent-filter>
+      <intent-filter>
+        <action android:name="androidx.media3.demo.surface.action.VIEW"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <data android:scheme="content"/>
+        <data android:mimeType="*/*"/>
+      </intent-filter>
     </activity>
 
   </application>

demos/transformer/src/main/AndroidManifest.xml

@@ -49,6 +49,12 @@
         <data android:scheme="asset"/>
         <data android:scheme="file"/>
       </intent-filter>
+      <intent-filter>
+        <action android:name="androidx.media3.demo.transformer.action.VIEW"/>
+        <category android:name="android.intent.category.DEFAULT"/>
+        <data android:scheme="content"/>
+        <data android:mimeType="*/*"/>
+      </intent-filter>
     </activity>
     <activity android:name=".TransformerActivity"
         android:configChanges="keyboard|keyboardHidden|orientation|screenSize|screenLayout|smallestScreenSize|uiMode"