import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@VisibleForTesting
void prepareToStartBrowserProcess(int maxRendererProcesses) throws ProcessInitException {
    Log.i(TAG, "Initializing chromium process, renderers=" + maxRendererProcesses);

    // Normally Main.java will have kicked this off asynchronously for Chrome. But other
    // ContentView apps like tests also need them so we make sure we've extracted resources
    // here. We can still make it a little async (wait until the library is loaded).
    ResourceExtractor resourceExtractor = ResourceExtractor.get(mContext);
    resourceExtractor.startExtractingResources();

    // Normally Main.java will have already loaded the library asynchronously, we only need
    // to load it here if we arrived via another flow, e.g. bookmark access & sync setup.
    LibraryLoader.ensureInitialized();

    // TODO(yfriedman): Remove dependency on a command line flag for this.
    DeviceUtils.addDeviceSpecificUserAgentSwitch(mContext);

    Context appContext = mContext.getApplicationContext();
    // Now we really need to have the resources ready.
    resourceExtractor.waitForCompletion();

    nativeSetCommandLineFlags(maxRendererProcesses,
            nativeIsPluginEnabled() ? getPlugins() : null);
    ContentMain.initApplicationContext(appContext);
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@Override
protected void onCreate(final Bundle savedInstance) {
    super.onCreate(savedInstance);

    // Initializing the command line must occur before loading the library.
    if (!CommandLine.isInitialized()) {
        CommandLine.initFromFile(COMMAND_LINE_FILE);
        String[] commandLineParams = getCommandLineParamsFromIntent(getIntent());
        if (commandLineParams != null) {
            CommandLine.getInstance().appendSwitchesAndArguments(commandLineParams);
        }
    }
    waitForDebuggerIfNeeded();

    DeviceUtils.addDeviceSpecificUserAgentSwitch(this);
    try {
        LibraryLoader.ensureInitialized();
    } catch (ProcessInitException e) {
        Log.e(TAG, "ContentView initialization failed.", e);
        finish();
        return;
    }

    CommandLine.getInstance().appendSwitch("disable-web-security");
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@Override
public void onCreate() {
    super.onCreate();

    AwShellResourceProvider.registerResources(this);

    CommandLine.initFromFile("/data/local/tmp/android-webview-command-line");

    if (CommandLine.getInstance().hasSwitch(CommandLine.WAIT_FOR_JAVA_DEBUGGER)) {
       Log.e(TAG, "Waiting for Java debugger to connect...");
       Debug.waitForDebugger();
       Log.e(TAG, "Java debugger connected. Resuming execution.");
    }

    ResourceExtractor.setMandatoryPaksToExtract(MANDATORY_PAKS);
    ResourceExtractor.setExtractImplicitLocaleForTesting(false);
    LibraryLoader.setLibraryToLoad(LIBRARIES);
    AwBrowserProcess.loadLibrary();
    AwBrowserProcess.start(this);
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@Override
public void onCreate() {
    // We want to do this at the earliest possible point in startup.
    UmaUtils.recordMainEntryPointTime();
    super.onCreate();

    ResourceExtractor.setMandatoryPaksToExtract(CHROME_MANDATORY_PAKS);
    PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
    LibraryLoader.setLibraryToLoad(LIBRARIES);

    mObservers = new ArrayList<ChromiumTestShellApplicationObserver>();
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
/**
 * Loads the native library, and performs basic static construction of objects needed
 * to run webview in this process. Does not create threads; safe to call from zygote.
 * Note: it is up to the caller to ensure this is only called once.
 */
public static void loadLibrary() {
    PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
    try {
        LibraryLoader.loadNow();
    } catch (ProcessInitException e) {
        throw new RuntimeException("Cannot load WebView", e);
    }
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Initializing the command line must occur before loading the library.
    if (!CommandLine.isInitialized()) {
        CommandLine.initFromFile(COMMAND_LINE_FILE);
        String[] commandLineParams = getCommandLineParamsFromIntent(getIntent());
        if (commandLineParams != null) {
            CommandLine.getInstance().appendSwitchesAndArguments(commandLineParams);
        }
    }
    waitForDebuggerIfNeeded();

    DeviceUtils.addDeviceSpecificUserAgentSwitch(this);
    try {
        LibraryLoader.ensureInitialized();
    } catch (ProcessInitException e) {
        Log.e(TAG, "ContentView initialization failed.", e);
        finish();
        return;
    }

    setContentView(R.layout.content_shell_activity);
    mShellManager = (ShellManager) findViewById(R.id.shell_container);
    mWindowAndroid = new WindowAndroid(this);
    mWindowAndroid.restoreInstanceState(savedInstanceState);
    mShellManager.setWindow(mWindowAndroid);

    String startupUrl = getUrlFromIntent(getIntent());
    if (!TextUtils.isEmpty(startupUrl)) {
        mShellManager.setStartupUrl(Shell.sanitizeUrl(startupUrl));
    }

    if (CommandLine.getInstance().hasSwitch(CommandLine.DUMP_RENDER_TREE)) {
        if(BrowserStartupController.get(this).startBrowserProcessesSync(
               BrowserStartupController.MAX_RENDERERS_LIMIT)) {
            finishInitialization(savedInstanceState);
        } else {
            initializationFailed();
        }
    } else {
        BrowserStartupController.get(this).startBrowserProcessesAsync(
                new BrowserStartupController.StartupCallback() {
            @Override
            public void onSuccess(boolean alreadyStarted) {
                finishInitialization(savedInstanceState);
            }

            @Override
            public void onFailure() {
                initializationFailed();
            }
        });
    }
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
public static void initializeApplicationParameters() {
    ResourceExtractor.setMandatoryPaksToExtract(MANDATORY_PAK_FILES);
    PathUtils.setPrivateDataDirectorySuffix(PRIVATE_DATA_DIRECTORY_SUFFIX);
    LibraryLoader.setLibraryToLoad(LIBRARIES);
}
 

import org.chromium.content.app.LibraryLoader; //导入依赖的package包/类
@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Initializing the command line must occur before loading the library.
    if (!CommandLine.isInitialized()) {
        CommandLine.initFromFile(COMMAND_LINE_FILE);
        String[] commandLineParams = getCommandLineParamsFromIntent(getIntent());
        if (commandLineParams != null) {
            CommandLine.getInstance().appendSwitchesAndArguments(commandLineParams);
        }
    }
    waitForDebuggerIfNeeded();

    DeviceUtils.addDeviceSpecificUserAgentSwitch(this);
    try {
        LibraryLoader.ensureInitialized();
    } catch (ProcessInitException e) {
        Log.e(TAG, "ContentView initialization failed.", e);
        finish();
        return;
    }

    setContentView(R.layout.content_shell_activity);
    mShellManager = (ShellManager) findViewById(R.id.shell_container);
    mWindowAndroid = new ActivityWindowAndroid(this);
    mWindowAndroid.restoreInstanceState(savedInstanceState);
    mShellManager.setWindow(mWindowAndroid);

    String startupUrl = getUrlFromIntent(getIntent());
    if (!TextUtils.isEmpty(startupUrl)) {
        mShellManager.setStartupUrl(Shell.sanitizeUrl(startupUrl));
    }

    if (CommandLine.getInstance().hasSwitch(CommandLine.DUMP_RENDER_TREE)) {
        if(BrowserStartupController.get(this).startBrowserProcessesSync(
               BrowserStartupController.MAX_RENDERERS_LIMIT)) {
            finishInitialization(savedInstanceState);
        } else {
            initializationFailed();
        }
    } else {
        BrowserStartupController.get(this).startBrowserProcessesAsync(
                new BrowserStartupController.StartupCallback() {
            @Override
            public void onSuccess(boolean alreadyStarted) {
                finishInitialization(savedInstanceState);
            }

            @Override
            public void onFailure() {
                initializationFailed();
            }
        });
    }
}