DocumentsUI: Fix download status was displayed incompletely

The layout arrangement of date, size and summary are unreasonable.
Text was ellipsized when summary has too much characters.

Reconfigure "layout_weight" of date, size and summary can fix this
issue.

CRs-Fixed: 619201

Change-Id: Ic2db20a303dd1db7e2d3375e4b733d704daf393b

(cherry picked from commit 96fea8bb94d2d26c2447a5e3415a7988186232af)
bug fix possible NPE while startProcessLocked()

In case, process doesn't create well while startingProcessLocked().
There is possibility to make NPE.
Setting app's crash handler needs to be assigned after null check routine.

Change-Id: I67fb6427f72d93f79fed36eb44c47d37eafdac31

(cherry picked from commit 09014bed2dd9cfa62ee37dd8f0ce28ee2cc6b72f)
[ActivityManager] Invalidate last screenshot when activity relaunched

Symptom:
The task thumbnail is not updated when activity relaunched.

Reproduce Steps:
1. Put device in portrait
2. Launch Calculator
3. Launch Recent App (the Calculator's screenshot is correct)
4. Rotate device to landscape
5. Click Calculator in Recent App to return to Calculator (Calculator has relaunched to landsacpe ui)
6. Launch Recent App again (the Calculator's screenshot is not updated)

Change-Id: I92e951ea2ee215c52ca6e50cf6f9e02deb787bce

(cherry picked from commit 31f9a46bc590cb5caf493f1ab38a92f1d647909e)
[ActivityManager] Ensure provider external access count will be released.

Sympton: Oom-adj of provider process will be always 0.

Root Cause: Exception happend in openContentUri
may not call removeContentProviderExternalUnchecked.

Flow:
application [MediaPlayer.setDataSource(Context context, Uri uri)]
    uri is invalid, IOException will be caught and below log will appear:
    "Couldn't open file on client side, trying server side"
    Continue to call setDataSource(String path, Map<String, String> headers)
 ->mediaserver [MediaPlayerService::Client::setDataSource]
    setDataSource(httpService, url, headers) calls openContentProviderFile
 ->system_server (ActivityManagerService) [openContentUri]
    Increase externalProcessNoHandleCount for media provider.
    Call [openFile] to media provider.
 ->android.process.media [check permission for openFile]
    enforceReadPermissionInner
 ->system_server [checkComponentPermission]
    Use mediaserver's uid to check READ_EXTERNAL_STORAGE
      -> not granted due to it is pure native process, not a known package.
    Throw security exception then the flow of openContentUri is broke.
    And externalProcessNoHandleCount is unable to decrease.

Application sample code:
 String invalidId = "54321";
 Uri externalUri = MediaStore.Files.getContentUri("external");
 Uri uri = Uri.withAppendedPath(externalUri, invalidId);
 mediaPlayer.setDataSource(mContext, uri);

Solution: Move removeContentProviderExternalUnchecked to finally block.

Change-Id: I75eec1f9631e9c6bb18449946d707d51ac21e8a7

(cherry picked from commit 21632b4d96a1630451cfcf69468521a9144fcfdd)
[ActivityManager] Prevent provider from been created twice.

Root Cause:
If a process which contains provider is starting but not
from accessing provider, e.g. service/activity/receiver,
its providers' will be created during handleBindApplication.
And before the process complete publish provider to
ActivityManagerService, if there is an access call to
process provider before the process completes publishing
providers to ActivityManagerService, then the providers
will be created again.

Solution:
Don't schedule install provider if the provider record
already exist and will be published later.

Change-Id: Ic200ceae042c014c86e7edee0acd013b513af334

(cherry picked from commit 71b9bc9d23a2c997068888fc77ef4efdcf98b961)
[ActivityManager] Avoid system server crash due to package removed

Symptom:
When application is not responding, an ANR dialog will shown.
In certain timing, user uninstall the application when the ANR
occurs, but before ANR dialog shown. The system server will crash
when looking up the errorReportReceiver because the package is removed.

Here shows how the exception occurs.
java.lang.IllegalArgumentException: Unknown package: app.package.name
 at com.android.server.pm.Settings.getInstallerPackageNameLPr
 at com.android.server.pm.PackageManagerService.getInstallerPackageName
 at android.app.ApplicationPackageManager.getInstallerPackageName
 at android.app.ApplicationErrorReport.getErrorReportReceiver
 at com.android.server.am.ActivityManagerService.startAppProblemLocked
 at com.android.server.am.ActivityManagerService.makeAppNotRespondingLocked
 at com.android.server.am.ActivityManagerService.appNotResponding

Change-Id: Iced4287bd44dc25b1db2c1e3a583892eb6c041a2

(cherry picked from commit bfcdc902faf8bf443565ab4edd20f22e4d100494)