Android: Use linker script to hide all non-JNI symbols

android_webview/test/BUILD.gn

Index: android_webview/test/BUILD.gn
diff --git a/android_webview/test/BUILD.gn b/android_webview/test/BUILD.gn
index a270995274122ff69bec07d0535d2901e725d101..92a152e7459797c74616d1d3003be68ee540fe46 100644
--- a/android_webview/test/BUILD.gn
+++ b/android_webview/test/BUILD.gn
@@ -93,7 +93,8 @@ shared_library("libstandalonelibwebviewchromium") {
   deps = [
     "//android_webview:common",
   ]
-  configs -= [ "//build/config/android:hide_native_jni_exports" ]
+  configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
+  configs += [ "//build/config/android:hide_all_but_jni" ]
 }
 
 instrumentation_test_apk("android_webview_test_apk") {
@@ -289,5 +290,5 @@ shared_library("libdrawgl") {
   sources = [
     "shell/src/draw_gl/draw_gl.cc",
   ]
-  configs -= [ "//build/config/android:hide_native_jni_exports" ]
+  configs -= [ "//build/config/android:hide_all_but_jni_onload" ]
 }