解决WebView插件化找不到资源问题

// framework/core/base/java/android/webkit/Webview.java
private void ensureProviderCreated() {
    checkThread();
    if (mProvider == null) {
        // As this can get called during the base class constructor chain, pass the minimum
        // number of dependencies here; the rest are deferred to init().
        mProvider = getFactory().createWebView(this, new PrivateAccess());
    }
}

private static WebViewFactoryProvider getFactory() {
    return WebViewFactory.getProvider();
}

// framework/core/base/java/android/webkit/WebviewFactory.java
static WebViewFactoryProvider getProvider() {
    synchronized (sProviderLock) {
        // ...
            Class<WebViewFactoryProvider> providerClass = getProviderClass();
            Method staticFactory = null;
            try {
                staticFactory = providerClass.getMethod(
                    CHROMIUM_WEBVIEW_FACTORY_METHOD, WebViewDelegate.class);
            }
            // ...
            try {
                sProviderInstance = (WebViewFactoryProvider)
                        staticFactory.invoke(null, new WebViewDelegate());
                if (DEBUG) Log.v(LOGTAG, "Loaded provider: " + sProviderInstance);
                return sProviderInstance;
            }
            // ...
    }
}

// framework/core/base/java/android/webkit/WebviewFactory.java
private static Class<WebViewFactoryProvider> getProviderClass() {
    Context webViewContext = null;
    Application initialApplication = AppGlobals.getInitialApplication();
    // ...
        try {
            webViewContext = getWebViewContextAndSetProvider();
        }
        // ...
        try {
            initialApplication.getAssets().addAssetPathAsSharedLibrary(
                    webViewContext.getApplicationInfo().sourceDir);
            ClassLoader clazzLoader = webViewContext.getClassLoader();
            Trace.traceBegin(Trace.TRACE_TAG_WEBVIEW, "WebViewFactory.loadNativeLibrary()");
            WebViewLibraryLoader.loadNativeLibrary(clazzLoader, sPackageInfo);
            // ...
            try {
                return getWebViewProviderClass(clazzLoader);
            }
        // ...
}