import org.chromium.chrome.browser.omaha.OmahaClient; //导入依赖的package包/类
@Override
public void preInflationStartup() {
    super.preInflationStartup();

    // Decide whether to record startup UMA histograms. This is done  early in the main
    // Activity.onCreate() to avoid recording navigation delays when they require user input to
    // proceed. For example, FRE (First Run Experience) happens before the activity is created,
    // and triggers initialization of the native library. At the moment it seems safe to assume
    // that uninitialized native library is an indication of an application start that is
    // followed by navigation immediately without user input.
    if (!LibraryLoader.isInitialized()) {
        UmaUtils.setRunningApplicationStart(true);
    }

    CommandLine commandLine = CommandLine.getInstance();
    if (commandLine.hasSwitch(ContentSwitches.ENABLE_TEST_INTENTS)
            && getIntent() != null
            && getIntent().hasExtra(
                    ChromeTabbedActivity.INTENT_EXTRA_TEST_RENDER_PROCESS_LIMIT)) {
        int value = getIntent().getIntExtra(
                ChromeTabbedActivity.INTENT_EXTRA_TEST_RENDER_PROCESS_LIMIT, -1);
        if (value != -1) {
            String[] args = new String[1];
            args[0] = "--" + ContentSwitches.RENDER_PROCESS_LIMIT
                    + "=" + Integer.toString(value);
            commandLine.appendSwitchesAndArguments(args);
        }
    }

    supportRequestWindowFeature(Window.FEATURE_ACTION_MODE_OVERLAY);

    // We are starting from history with a URL after data has been cleared. On Samsung this
    // can happen after user clears data and clicks on a recents item on pre-L devices.
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP
            && getIntent().getData() != null
            && (getIntent().getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0
            && OmahaClient.isFreshInstallOrDataHasBeenCleared(getApplicationContext())) {
        getIntent().setData(null);
    }
}
 

import org.chromium.chrome.browser.omaha.OmahaClient; //导入依赖的package包/类
/**
 * Unless testing, do not override this function.
 */
@Override
public void run() {
    Context context = ApplicationStatus.getApplicationContext();

    // Resume communication with the Omaha Update Server.
    if (ChromeVersionInfo.isOfficialBuild()) {
        Intent omahaIntent = OmahaClient.createInitializeIntent(context);
        context.startService(omahaIntent);
    }

    DelayedInvalidationsController.getInstance().notifyPendingInvalidations(context);
}
 

import org.chromium.chrome.browser.omaha.OmahaClient; //导入依赖的package包/类
/**
 * Executed when all of the system conditions are met.
 */
public void runActions() {
    Context context = ContextUtils.getApplicationContext();
    OmahaClient.onForegroundSessionStart(context);
    DelayedInvalidationsController.getInstance().notifyPendingInvalidations(context);
}
 

import org.chromium.chrome.browser.omaha.OmahaClient; //导入依赖的package包/类
@Override
public void preInflationStartup() {
    super.preInflationStartup();

    // Decide whether to record startup UMA histograms. This is done  early in the main
    // Activity.onCreate() to avoid recording navigation delays when they require user input to
    // proceed. For example, FRE (First Run Experience) happens before the activity is created,
    // and triggers initialization of the native library. At the moment it seems safe to assume
    // that uninitialized native library is an indication of an application start that is
    // followed by navigation immediately without user input.
    if (!LibraryLoader.isInitialized()) {
        UmaUtils.setRunningApplicationStart(true);
    }

    CommandLine commandLine = CommandLine.getInstance();
    if (commandLine.hasSwitch(ContentSwitches.ENABLE_TEST_INTENTS)
            && getIntent() != null
            && getIntent().hasExtra(
                    ChromeTabbedActivity.INTENT_EXTRA_TEST_RENDER_PROCESS_LIMIT)) {
        int value = getIntent().getIntExtra(
                ChromeTabbedActivity.INTENT_EXTRA_TEST_RENDER_PROCESS_LIMIT, -1);
        if (value != -1) {
            String[] args = new String[1];
            args[0] = "--" + ChromeSwitches.RENDER_PROCESS_LIMIT
                    + "=" + Integer.toString(value);
            commandLine.appendSwitchesAndArguments(args);
        }
    }

    commandLine.appendSwitch(ChromeSwitches.ENABLE_HIGH_END_UI_UNDO);

    supportRequestWindowFeature(Window.FEATURE_ACTION_MODE_OVERLAY);

    // We are starting from history with a URL after data has been cleared. On Samsung this
    // can happen after user clears data and clicks on a recents item on pre-L devices.
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP
            && getIntent().getData() != null
            && (getIntent().getFlags() & Intent.FLAG_ACTIVITY_LAUNCHED_FROM_HISTORY) != 0
            && OmahaClient.isFreshInstallOrDataHasBeenCleared(getApplicationContext())) {
        getIntent().setData(null);
    }
}