Add instant cookie APIs - PackageInstaller

This change adds APIs for instant apps to store cookie data
that is presisted across instant installs and acorss the
upgrade from an instant to a standard app. Standard apps
can use the cookie APIs but when they are uninstalled the
cookie is also deleted. The cookies are kept longer than
the instant apps as they are much smaller - 16KB by default.
We can change the cookie size via a system setting i.e.
after we ship we can increase size if needed.

We also add internal APIs to surface information about
installed and uninstalled instant apps which should be
used for showing them in the UI. For this puporse we store
the icon, permissions, and label of unisntalled apps. If
the app is re-installed we drop this meta-data but keep
the cookie around.

Test: CTS tests pass; hiddent APIs tested manually

Change-Id: I6e6c1784035fb52556b96dc0228eb9df35cb5dad

5 files changed, 6 insertions, 4 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 014928dc..2206177c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -24,6 +24,8 @@
 
     <uses-permission android:name="com.google.android.permission.INSTALL_WEARABLE_PACKAGES" />
 
+    <uses-permission android:name="android.permission.ACCESS_INSTANT_APPS" />
+
     <application android:label="@string/app_name"
             android:allowBackup="false"
             android:theme="@style/DialogWhenLarge"
diff --git a/src/com/android/packageinstaller/permission/model/AppPermissionGroup.java b/src/com/android/packageinstaller/permission/model/AppPermissionGroup.java
index f7124653..ebe198fb 100644
--- a/src/com/android/packageinstaller/permission/model/AppPermissionGroup.java
+++ b/src/com/android/packageinstaller/permission/model/AppPermissionGroup.java
@@ -195,7 +195,7 @@ public final class AppPermissionGroup implements Comparable<AppPermissionGroup>
         mPackageInfo = packageInfo;
         mAppSupportsRuntimePermissions = packageInfo.applicationInfo
                 .targetSdkVersion > Build.VERSION_CODES.LOLLIPOP_MR1;
-        mIsEphemeralApp = packageInfo.applicationInfo.isEphemeralApp();
+        mIsEphemeralApp = packageInfo.applicationInfo.isInstantApp();
         mAppOps = context.getSystemService(AppOpsManager.class);
         mActivityManager = context.getSystemService(ActivityManager.class);
         mDeclaringPackage = declaringPackage;
diff --git a/src/com/android/packageinstaller/permission/ui/GrantPermissionsActivity.java b/src/com/android/packageinstaller/permission/ui/GrantPermissionsActivity.java
index 179d441a..ee6884d8 100644
--- a/src/com/android/packageinstaller/permission/ui/GrantPermissionsActivity.java
+++ b/src/com/android/packageinstaller/permission/ui/GrantPermissionsActivity.java
@@ -382,7 +382,7 @@ public class GrantPermissionsActivity extends OverlayTouchActivity
                 return PERMISSION_DENIED;
             }
             if ((pInfo.protectionLevel & PermissionInfo.PROTECTION_FLAG_EPHEMERAL) == 0
-                    && callingPackageInfo.applicationInfo.isEphemeralApp()) {
+                    && callingPackageInfo.applicationInfo.isInstantApp()) {
                 return PERMISSION_DENIED;
             }
         } catch (NameNotFoundException e) {
diff --git a/src/com/android/packageinstaller/permission/ui/handheld/AllAppPermissionsFragment.java b/src/com/android/packageinstaller/permission/ui/handheld/AllAppPermissionsFragment.java
index 745c83a3..ba9e47a2 100644
--- a/src/com/android/packageinstaller/permission/ui/handheld/AllAppPermissionsFragment.java
+++ b/src/com/android/packageinstaller/permission/ui/handheld/AllAppPermissionsFragment.java
@@ -149,7 +149,7 @@ public final class AllAppPermissionsFragment extends SettingsWithHeader {
                         continue;
                     }
 
-                    if (appInfo.isEphemeralApp()
+                    if (appInfo.isInstantApp()
                             && (perm.protectionLevel & PermissionInfo.PROTECTION_FLAG_EPHEMERAL)
                                 == 0) {
                         continue;
diff --git a/src/com/android/packageinstaller/permission/ui/television/AllAppPermissionsFragment.java b/src/com/android/packageinstaller/permission/ui/television/AllAppPermissionsFragment.java
index 5e7b68f2..f6df40f0 100644
--- a/src/com/android/packageinstaller/permission/ui/television/AllAppPermissionsFragment.java
+++ b/src/com/android/packageinstaller/permission/ui/television/AllAppPermissionsFragment.java
@@ -155,7 +155,7 @@ public final class AllAppPermissionsFragment extends SettingsWithHeader {
                         || (perm.flags & PermissionInfo.FLAG_REMOVED) != 0) {
                     continue;
                 }
-                if (appInfo.isEphemeralApp()
+                if (appInfo.isInstantApp()
                         && (perm.protectionLevel & PermissionInfo.PROTECTION_FLAG_EPHEMERAL) == 0) {
                     continue;
                 }