[Autofill Assistant] Change form colors.

Change-Id: Iceb49a975735c34da9b1303a435c1d77de577232
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1635254Reviewed-by: Clemens Arbesser <arbesser@google.com>
Commit-Queue: Jordan Demeulenaere <jdemeulenaere@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664279}

chrome/android/features/autofill_assistant/java/res/layout/autofill_assistant_form_counter_input.xml

@@ -15,7 +15,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginBottom="4dp"
-        android:textAppearance="@style/TextAppearance.BlackTitle2"/>
+        android:textAppearance="@style/TextAppearance.BlackButtonText"/>
     <LinearLayout
         android:id="@+id/expand_label_container"
         android:layout_width="match_parent"

chrome/android/features/autofill_assistant/java/res/layout/autofill_assistant_form_selection_input.xml

@@ -14,7 +14,7 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginBottom="4dp"
-        android:textAppearance="@style/TextAppearance.BlackTitle2"/>
+        android:textAppearance="@style/TextAppearance.BlackButtonText"/>
 
     <org.chromium.chrome.browser.autofill_assistant.payment.AssistantChoiceList
         android:id="@+id/choice_list"

chrome/android/features/autofill_assistant/java/src/org/chromium/chrome/browser/autofill_assistant/form/AssistantFormSelectionInput.java

@@ -52,10 +52,9 @@ class AssistantFormSelectionInput extends AssistantFormInput {
         for (int i = 0; i < mChoices.size(); i++) {
             AssistantFormSelectionChoice choice = mChoices.get(i);
 
-            // Set the same style as Payment Request T&C.
             TextView choiceView = new TextView(context);
             ApiCompatibilityUtils.setTextAppearance(
-                    choiceView, org.chromium.chrome.R.style.TextAppearance_BlackCaption);
+                    choiceView, org.chromium.chrome.R.style.TextAppearance_BlackCaptionDefault);
             choiceView.setText(choice.getLabel());
 
             int index = i; // needed for the lambda.