Allow JNI registration to be performed eagerly.

content/public/app/android_library_loader_hooks.h

Index: content/public/app/android_library_loader_hooks.h
diff --git a/content/public/app/android_library_loader_hooks.h b/content/public/app/android_library_loader_hooks.h
index c4bec7e39396da1a4135853ec0cf2611bd54f181..a980005ee5697b1ccd6ce3ac6d909e6b61538d76 100644
--- a/content/public/app/android_library_loader_hooks.h
+++ b/content/public/app/android_library_loader_hooks.h
@@ -18,6 +18,11 @@ namespace content {
 // once the native library has fully loaded.
 CONTENT_EXPORT bool RegisterLibraryLoaderEntryHook(JNIEnv* env);
 
+// Register all content JNI functions now, rather than waiting for the process
+// of fully loading the native library to complete.  This must only be called
+// during JNI_OnLoad.
+CONTENT_EXPORT bool EnsureJniRegistered(JNIEnv* env);
+
 // Call on exit to delete the AtExitManager which OnLibraryLoadedOnUIThread
 // created.
 CONTENT_EXPORT void LibraryLoaderExitHook();