Android: avoid an assertion in URL::isLocalFile().

modules/juce_core/native/juce_android_Network.cpp

@@ -73,8 +73,13 @@ bool URL::isLocalFile() const
     if (getScheme() == "file")
         return true;
 
-    auto file = AndroidContentUriResolver::getLocalFileFromContentUri (*this);
-    return (file != File());
+    if (getScheme() == "content")
+    {
+        auto file = AndroidContentUriResolver::getLocalFileFromContentUri (*this);
+        return (file != File());
+    }
+
+    return false;
 }
 
 File URL::getLocalFile() const