Use TintedImageButton for accessibility tab switcher.

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

Index: chrome/android/java/res/layout/accessibility_tab_switcher_list_item.xml
diff --git a/chrome/android/java/res/layout/accessibility_tab_switcher_list_item.xml b/chrome/android/java/res/layout/accessibility_tab_switcher_list_item.xml
index 152920e6370e9d207ead72fe783feee71c0190bc..66addb267e26d1b4e37fe1712012f92a70b1e8bd 100644
--- a/chrome/android/java/res/layout/accessibility_tab_switcher_list_item.xml
+++ b/chrome/android/java/res/layout/accessibility_tab_switcher_list_item.xml
@@ -8,6 +8,7 @@
 
 <org.chromium.chrome.browser.widget.accessibility.AccessibilityTabModelListItem
     xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:chrome="http://schemas.android.com/apk/res-auto"
     android:id="@+id/list_item_frame"
     android:layout_width="match_parent"
     android:layout_height="@dimen/accessibility_tab_height">
@@ -40,7 +41,7 @@
             android:padding="4dp"
             android:textColor="@android:color/white"
             android:textSize="18sp" />
-        <ImageButton
+        <org.chromium.chrome.browser.widget.TintedImageButton
             android:id="@+id/close_btn"
             android:scaleType="centerInside"
             android:layout_width="wrap_content"
@@ -49,7 +50,8 @@
             android:padding="4dp"
             android:background="?attr/selectableItemBackground"
             android:contentDescription="@string/accessibility_tabstrip_btn_close_tab"
-            android:src="@drawable/btn_tab_close"
+            android:src="@drawable/btn_close"
+            chrome:tint="@color/light_mode_tint"
             android:gravity="end|center_vertical" />
     </LinearLayout>