Add landscape specs for Data Reduction Proxy promo

chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionPromoView.java

Index: chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionPromoView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionPromoView.java b/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionPromoView.java
new file mode 100644
index 0000000000000000000000000000000000000000..093d455337a6f16615c5da3337a7b5006391d7b2
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/preferences/datareduction/DataReductionPromoView.java
@@ -0,0 +1,74 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.preferences.datareduction;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.View.MeasureSpec;
+import android.widget.LinearLayout;
+
+import org.chromium.base.ApiCompatibilityUtils;
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.widget.PaddedFrameLayout;
+
+/**
+ * View that handles orientation changes for the Data Reduction Proxy promo. When the width is
+ * greater than the height, switches the promo content view from vertical to horizontal and moves
+ * the illustration from the top of the text to the side of the text.
+ */
+public class DataReductionPromoView extends PaddedFrameLayout {
+
+    private static final int ILLUSTRATION_HORIZONTAL_PADDING_DP = 24;
+    private static final int FRAME_HEIGHT_MARGIN_DP = 30;
+
+    private View mIllustration;
+    private LinearLayout mPromoContent;
+    private int mMaxChildWidth;
+    private int mMaxChildWidthHorizontal;
+    private int mIllustrationPaddingBottom;
+    private int mIllustrationPaddingSide;
+    private int mFrameHeightMargin;
+
+    public DataReductionPromoView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        mMaxChildWidth = getResources()
+                    .getDimensionPixelSize(R.dimen.data_reduction_promo_screen_width);
+        mMaxChildWidthHorizontal = getResources()
+                    .getDimensionPixelSize(R.dimen.data_reduction_promo_screen_width_horizontal);
+        mIllustrationPaddingBottom = getResources()
+                    .getDimensionPixelSize(R.dimen.data_reduction_promo_illustration_margin_bottom);
+        float density = getResources().getDisplayMetrics().density;
+        mIllustrationPaddingSide = (int) (ILLUSTRATION_HORIZONTAL_PADDING_DP * density + 0.5f);
+        mFrameHeightMargin = (int) (FRAME_HEIGHT_MARGIN_DP * density + 0.5f);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        mIllustration = findViewById(R.id.data_reduction_illustration);
+        mPromoContent = (LinearLayout) findViewById(R.id.data_reduction_promo_content);
+    }
+
+    @Override
+    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        int width = MeasureSpec.getSize(widthMeasureSpec);
+        int height = MeasureSpec.getSize(heightMeasureSpec);
+
+        if (width >= 2 * mIllustration.getWidth() && width > height) {
+            mPromoContent.setOrientation(LinearLayout.HORIZONTAL);
+            setMaxChildWidth(mMaxChildWidthHorizontal);
+            ApiCompatibilityUtils.setPaddingRelative(
+                    mIllustration, 0, 0, mIllustrationPaddingSide, 0);
+        } else {
+            mPromoContent.setOrientation(LinearLayout.VERTICAL);
+            setMaxChildWidth(mMaxChildWidth);
+            mIllustration.setPadding(0, 0, 0, mIllustrationPaddingBottom);
+        }
+
+        setMaxChildHeight(height - mFrameHeightMargin);
+        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+}