import org.chromium.content.common.CleanupReference; //导入依赖的package包/类
@Override
public void initialize() {
    super.initialize();

    mNativeTestShellTab = nativeInit();
    mCleanupReference = new CleanupReference(this, new DestroyRunnable(mNativeTestShellTab));
}
 

import org.chromium.content.common.CleanupReference; //导入依赖的package包/类
/**
 * @param nativeAwPicture is an instance of the AwPicture native class. Ownership is
 *                        taken by this java instance.
 */
AwPicture(long nativeAwPicture) {
    mNativeAwPicture = nativeAwPicture;
    mCleanupReference = new CleanupReference(this, new DestroyRunnable(nativeAwPicture));
}
 

import org.chromium.content.common.CleanupReference; //导入依赖的package包/类
/**
 * @param nativeAwPicture is an instance of the AwPicture native class. Ownership is
 *                        taken by this java instance.
 */
AwPicture(int nativeAwPicture) {
    mNativeAwPicture = nativeAwPicture;
    mCleanupReference = new CleanupReference(this, new DestroyRunnable(nativeAwPicture));
}
 

import org.chromium.content.common.CleanupReference; //导入依赖的package包/类
/**
 * Creates a new fetcher that can use to fetch cookies from cookie jar
 * or from a file.
 *
 * The lifetime of this object is handled internally. Callers only call
 * the public static methods which construct a CookiesFetcher object.
 * It remains alive only during the static call or when it is still
 * waiting for a callback to be invoked. In the latter case, the native
 * counter part will hold a strong reference to this Java class so the GC
 * would not collect it until the callback has been invoked.
 */
private CookiesFetcher(Context context) {
    mNativeCookiesFetcher = nativeInit();
    mContext = context.getApplicationContext();
    mCleanupReference = new CleanupReference(this, new DestroyRunnable(mNativeCookiesFetcher));
}