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

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

<org.chromium.chrome.browser.history.HistoryManagerToolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:chrome="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingStart="0dp"
    android:paddingEnd="0dp" >

    <include layout="@layout/number_roll_view" />

    <!-- TODO(twellington): extract so this can be shared with downloads. -->
    <LinearLayout
        android:id="@+id/history_search"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:visibility="gone" >
        <EditText
            android:id="@+id/history_search_text"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@null"
            android:hint="@string/history_manager_search"
            android:imeOptions="flagNoExtractUi|actionSearch"
            android:inputType="textNoSuggestions"
            android:singleLine="true"
            android:textColor="@color/default_text_color"
            android:textSize="16sp" />

        <org.chromium.chrome.browser.widget.TintedImageButton
            android:id="@+id/delete_button"
            style="@style/HistoryEndIcon"
            android:src="@drawable/btn_delete_url"
            android:contentDescription="@string/accessibility_toolbar_btn_delete_url"
            android:visibility="invisible"
            chrome:tint="@color/dark_mode_tint" />

    </LinearLayout>

</org.chromium.chrome.browser.history.HistoryManagerToolbar>