Start implementation of new app info storage page

Things are mostly in the right places, may need some minor location
adjustment on everything and styling for the buttons.

Bug: 19511439
Change-Id: If7730285d6ddc36e32cc8bc119885a8e215c0eb5

src/com/android/settings/applications/LayoutPreference.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2015 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.
+ */
+
+package com.android.settings.applications;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.preference.Preference;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.android.settings.R;
+import com.android.settings.Utils;
+
+public class LayoutPreference extends Preference {
+
+    private View mRootView;
+
+    public LayoutPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        final TypedArray a = context.obtainStyledAttributes(
+                attrs, com.android.internal.R.styleable.Preference, 0, 0);
+        int layoutResource = a.getResourceId(com.android.internal.R.styleable.Preference_layout,
+                0);
+        if (layoutResource == 0) {
+            throw new IllegalArgumentException("LayoutPreference requires a layout to be defined");
+        }
+        // Need to create view now so that findViewById can be called immediately.
+        final View view = LayoutInflater.from(getContext())
+                .inflate(layoutResource, null, false);
+
+        final ViewGroup allDetails = (ViewGroup) view.findViewById(R.id.all_details);
+        Utils.forceCustomPadding(allDetails, true /* additive padding */);
+        mRootView = view;
+        setShouldDisableView(false);
+    }
+
+    @Override
+    protected View onCreateView(ViewGroup parent) {
+        return mRootView;
+    }
+
+    public View findViewById(int id) {
+        return mRootView.findViewById(id);
+    }
+
+}