Moved Field Trial related code to CardsFieldTrial.

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardsFieldTrial.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardsFieldTrial.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardsFieldTrial.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardsFieldTrial.java
deleted file mode 100644
index 96dcd7a0f65a002054a14cd1a2b3f2c1b7626ad7..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardsFieldTrial.java
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright 2016 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.ntp.cards;
-
-import android.text.TextUtils;
-
-import org.chromium.base.CommandLine;
-import org.chromium.base.Log;
-import org.chromium.chrome.browser.ntp.NewTabPage;
-import org.chromium.components.variations.VariationsAssociatedData;
-
-/**
- * Provides easy access to data for field trials to do with the Cards UI.
- */
-public final class CardsFieldTrial {
-    private static final String TAG = "CardFinchExperiments";
-
-    // TODO(peconn): Move NewTabPage.FIELD_TRIAL_NAME and all uses into this class.
-    private static final String FIRST_CARD_OFFSET = "first_card_offset";
-
-    private CardsFieldTrial() {
-    }
-
-    /**
-     * Provides the value of the field trial to offset the peeking card (can be overridden
-     * with a command line flag). It will return 0 if there is no such field trial.
-     */
-    public static int getFirstCardOffsetDp() {
-        String value = CommandLine.getInstance().getSwitchValue(FIRST_CARD_OFFSET);
-
-        if (TextUtils.isEmpty(value)) {
-            value = VariationsAssociatedData.getVariationParamValue(NewTabPage.FIELD_TRIAL_NAME,
-                    FIRST_CARD_OFFSET);
-        }
-
-        if (!TextUtils.isEmpty(value)) {
-            try {
-                return Integer.parseInt(value);
-            } catch (NumberFormatException ex) {
-                Log.w(TAG, "Cannot parse card offset experiment value, %s.", value);
-            }
-        }
-
-        return 0;
-    }
-}