Update sdk.atree and samples/browseable for lastest samples release

Synced to developers/samples/android commit
97b2cfe5ba6d8fa8daaf3273141b321b5fe9e910.

Change-Id: I360cfa147e71dd519b841df41b4e878f86b9b27b

samples/browseable/GridViewPager/src/com.example.android.wearable.gridviewpager/MainActivity.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2014 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.example.android.wearable.gridviewpager;
+
+import android.app.Activity;
+import android.content.res.Resources;
+import android.os.Bundle;
+import android.support.wearable.view.DotsPageIndicator;
+import android.support.wearable.view.GridViewPager;
+import android.view.View;
+import android.view.View.OnApplyWindowInsetsListener;
+import android.view.WindowInsets;
+
+public class MainActivity extends Activity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        final Resources res = getResources();
+        final GridViewPager pager = (GridViewPager) findViewById(R.id.pager);
+        pager.setOnApplyWindowInsetsListener(new OnApplyWindowInsetsListener() {
+            @Override
+            public WindowInsets onApplyWindowInsets(View v, WindowInsets insets) {
+                // Adjust page margins:
+                //   A little extra horizontal spacing between pages looks a bit
+                //   less crowded on a round display.
+                final boolean round = insets.isRound();
+                int rowMargin = res.getDimensionPixelOffset(R.dimen.page_row_margin);
+                int colMargin = res.getDimensionPixelOffset(round ?
+                        R.dimen.page_column_margin_round : R.dimen.page_column_margin);
+                pager.setPageMargins(rowMargin, colMargin);
+
+                // GridViewPager relies on insets to properly handle
+                // layout for round displays. They must be explicitly
+                // applied since this listener has taken them over.
+                pager.onApplyWindowInsets(insets);
+                return insets;
+            }
+        });
+        pager.setAdapter(new SampleGridPagerAdapter(this, getFragmentManager()));
+        DotsPageIndicator dotsPageIndicator = (DotsPageIndicator) findViewById(R.id.page_indicator);
+        dotsPageIndicator.setPager(pager);
+    }
+}