Add a method for fetching the WebView classloader.

The WebView Support Library needs a way to hook into the WebView APK,
this new method returns a classloader that can be used to load internal
WebView classes.
The idea is to have this classloader be provided by the WebView APK
itself, so that the classes accessed from the classloader can be
filtered to avoid apps accidentally adding dependencies on internal
details of the WebView APK.

Test: N/A - cannot add CTS tests until we drop a WebView APK containing
the implementation for this API.
Bug: 38220806
Change-Id: If744a740ff0b1728d2d4674e73697bc6a5e27dde

1 files changed, 10 insertions, 0 deletions

diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index deb94e816a69..00860a42a546 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -2412,6 +2412,16 @@ public class WebView extends AbsoluteLayout
         return mProvider.getTextClassifier();
     }
 
+    /**
+     * Returns the {@link ClassLoader} used to load internal WebView classes.
+     * This method is meant for use by the WebView Support Library, there is no reason to use this
+     * method otherwise.
+     */
+    @NonNull
+    public static ClassLoader getWebViewClassLoader() {
+        return getFactory().getWebViewClassLoader();
+    }
+
     //-------------------------------------------------------------------------
     // Interface for WebView providers
     //-------------------------------------------------------------------------