Create the customized TabLayout for the new translate UI

chrome/android/java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabContent.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabContent.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabContent.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabContent.java
new file mode 100644
index 0000000000000000000000000000000000000000..8573b2177256792b3b71cb97d46dc3a36ffa476a
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/translate/TranslateTabContent.java
@@ -0,0 +1,80 @@
+// Copyright 2017 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.infobar.translate;
+
+import android.content.Context;
+import android.content.res.ColorStateList;
+import android.content.res.TypedArray;
+import android.support.v4.widget.TextViewCompat;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.FrameLayout;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import org.chromium.chrome.R;
+
+/**
+ * The content of the tab shown in the TranslateTabLayout.
+ */
+public class TranslateTabContent extends FrameLayout {
+    private TextView mTextView;
+    private ProgressBar mProgressBar;
+
+    /**
+     * Constructor for inflating from XML.
+     */
+    public TranslateTabContent(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        mTextView = (TextView) findViewById(R.id.translate_infobar_tab_text);
+        mProgressBar = (ProgressBar) findViewById(R.id.translate_infobar_tab_progressbar);
+    }
+
+    /**
+     * Set the appearance and color of the title text.
+     * @param context      The context used to render.
+     * @param colors       The color state list of the title text.
+     * @param attrs        The AttributeSet to style the title text.
+     * @param defStyleAttr Default style attribute to use.
+     */
+    public void setupTextAppearance(
+            Context context, ColorStateList colors, AttributeSet attrs, int defStyleAttr) {
+        // Style the textView using the text appearance of TabLayout.
+        TypedArray a = context.obtainStyledAttributes(
+                attrs, R.styleable.TabLayout, defStyleAttr, R.style.Widget_Design_TabLayout);

[gone, 2017/03/29 17:04:10]

Can you set these styles in the XML themselves?  There are attributes for it.

[Marti Wong, 2017/03/29 23:38:07]

Done.  Thanks for the advice.
The code is so much cleaner now.

+        int tabTextAppearance = a.getResourceId(
+                R.styleable.TabLayout_tabTextAppearance, R.style.TextAppearance_Design_Tab);
+        TextViewCompat.setTextAppearance(mTextView, tabTextAppearance);
+
+        // Set text color using tabLayout's ColorStateList.

[gone, 2017/03/29 17:04:10]

{@link TabLayout}

Worth adding a comment about why you need to do this.

[Marti Wong, 2017/03/29 23:38:07]

Done.
This function is changed to setTextColor
Added a comment at the parent explaining why calling this function.

+        mTextView.setTextColor(colors);
+    }
+
+    /**
+     * Set the title text for this tab.
+     * @param tabTitle The new title string.
+     */
+    public void setText(CharSequence tabTitle) {
+        mTextView.setText(tabTitle);
+    }
+
+    /** Hide progress bar and show text. */
+    public void hideProgressBar() {
+        mProgressBar.setVisibility(View.INVISIBLE);
+        mTextView.setVisibility(View.VISIBLE);
+    }
+
+    /** Show progress bar and hide text. */
+    public void showProgressBar() {
+        mTextView.setVisibility(View.INVISIBLE);
+        mProgressBar.setVisibility(View.VISIBLE);
+    }
+}