Move code to plugin core lib

This contains the core interfaces for plugin support, e.g. Plugin.java
and the associated annotations. It is reused by the shared library and
plugin interfaces in both sysui and launcher are built off of it.

Test: atest com.android.systemui.shared.plugins
Test: cd $ANDROID_BUILD_TOP/frameworks/base/packages/SystemUI/plugin_core \
    && mma -j32 && cd -
out/target/product/$TARGET_PRODUCT/obj/JAVA_LIBRARIES/PluginCoreLib_intermediates/javalib.jar
contains the created jar and is useable in launcher

Bug: 115877296
Change-Id: I82ca7398e882d6432333238e2f77a12e776f1d76
diff --git a/packages/SystemUI/plugin/Android.bp b/packages/SystemUI/plugin/Android.bp
index b38059d..df5561a 100644
--- a/packages/SystemUI/plugin/Android.bp
+++ b/packages/SystemUI/plugin/Android.bp
@@ -18,6 +18,9 @@
 
     srcs: ["src/**/*.java"],
 
+    static_libs: [
+        "PluginCoreLib"
+    ],
 
 }
 
diff --git a/packages/SystemUI/plugin_core/Android.bp b/packages/SystemUI/plugin_core/Android.bp
new file mode 100644
index 0000000..58a8e49
--- /dev/null
+++ b/packages/SystemUI/plugin_core/Android.bp
@@ -0,0 +1,21 @@
+// Copyright (C) 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+java_library {
+
+    name: "PluginCoreLib",
+
+    srcs: ["src/**/*.java"],
+
+}
diff --git a/packages/SystemUI/plugin_core/AndroidManifest.xml b/packages/SystemUI/plugin_core/AndroidManifest.xml
new file mode 100644
index 0000000..df835fd
--- /dev/null
+++ b/packages/SystemUI/plugin_core/AndroidManifest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.systemui.plugin_core">
+
+    <uses-sdk
+        android:minSdkVersion="28" />
+
+</manifest>
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/Plugin.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/Plugin.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/Plugin.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/Plugin.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/PluginFragment.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/PluginFragment.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/PluginFragment.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/PluginFragment.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/PluginListener.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/PluginListener.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/PluginListener.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/PluginListener.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Dependencies.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Dependencies.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Dependencies.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Dependencies.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/DependsOn.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/DependsOn.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/DependsOn.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/DependsOn.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/ProvidesInterface.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/ProvidesInterface.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/ProvidesInterface.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/ProvidesInterface.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Requirements.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Requirements.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Requirements.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Requirements.java
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Requires.java b/packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Requires.java
similarity index 100%
rename from packages/SystemUI/plugin/src/com/android/systemui/plugins/annotations/Requires.java
rename to packages/SystemUI/plugin_core/src/com/android/systemui/plugins/annotations/Requires.java
diff --git a/packages/SystemUI/shared/Android.bp b/packages/SystemUI/shared/Android.bp
index defc49b..31a538c 100644
--- a/packages/SystemUI/shared/Android.bp
+++ b/packages/SystemUI/shared/Android.bp
@@ -21,10 +21,10 @@
     ],
 
     static_libs: [
-        "SystemUIPluginLib"
+        "PluginCoreLib"
     ],
 
-    // Enforce that the library is build agains java 7 so that there are
+    // Enforce that the library is built against java 7 so that there are
     // no compatibility issues with launcher
     java_version: "1.7",
 }