Add "Checking" spinner for server-side shipping address validation.

chrome/android/java/res/values-v17/styles.xml

Index: chrome/android/java/res/values-v17/styles.xml
diff --git a/chrome/android/java/res/values-v17/styles.xml b/chrome/android/java/res/values-v17/styles.xml
index 4b908d63cf0ec16c91dc304c42ffab81e8eca984..1b23707c628f571b32e38871e0c691575005ce5a 100644
--- a/chrome/android/java/res/values-v17/styles.xml
+++ b/chrome/android/java/res/values-v17/styles.xml
@@ -483,10 +483,18 @@
         <item name="android:textColor">@color/default_text_color</item>
         <item name="android:textSize">16sp</item>
     </style>
+    <style name="PaymentsUiSectionDisabledText">
+        <item name="android:textColor">@color/explanation_text_color</item>
+        <item name="android:textSize">16sp</item>
+    </style>
     <style name="PaymentsUiSectionDescriptiveText">
         <item name="android:textColor">@color/descriptive_text_color</item>
         <item name="android:textSize">14sp</item>
     </style>
+    <style name="PaymentsUiSectionWarningText">
+        <item name="android:textColor">@color/error_text_color</item>
+        <item name="android:textSize">14sp</item>
+    </style>
     <style name="PaymentsUiSectionDescriptiveTextEndAligned" parent="PaymentsUiSectionDescriptiveText">
         <item name="android:textAlignment">viewEnd</item>
     </style>