chrome/android/java/res/layout/fake_search_box_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2018 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. -->

<view
    class="org.chromium.chrome.browser.ntp.NewTabPageLayout$SearchBoxContainerView"
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/search_box"
    android:layout_width="match_parent"
    android:layout_height="@dimen/ntp_search_box_height"
    android:layout_marginStart="10dp"
    android:layout_marginEnd="10dp"
    android:layout_marginTop="0dp"
    android:layout_marginBottom="1dp"
    android:gravity="center_vertical"
    android:addStatesFromChildren="true"
    android:background="@drawable/ntp_search_box"
    android:orientation="horizontal"
    android:paddingStart="@dimen/location_bar_lateral_padding" >

    <!-- TODO(crbug.com/900912): Fix and remove lint ignore -->
    <EditText
        tools:ignore="Autofill,LabelFor"
        style="@style/TextAppearance.NewTabPageSearchBoxText"
        android:id="@+id/search_box_text"
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_marginEnd="12dp"
        android:layout_weight="1"
        android:background="@null"
        android:ellipsize="end"
        android:focusableInTouchMode="false"
        android:focusable="false"
        android:gravity="center_vertical"
        android:inputType="text"
        android:singleLine="true"
        android:hint="@string/search_or_type_web_address" />
    <!-- Padding start is applied so that microphone icon appears in the same location as it
        does in the main url bar. The microphone button in the url bar is 48dp wide with 4dp
        start padding. -->
    <org.chromium.ui.widget.ChromeImageView
        android:id="@+id/voice_search_button"
        android:layout_width="48dp"
        android:layout_height="match_parent"
        android:paddingStart="4dp"
        android:contentDescription="@string/accessibility_toolbar_btn_mic"
        android:src="@drawable/btn_mic"
        android:scaleType="centerInside"
        app:tint="@color/default_icon_color_tint_list" />
</view>