Remove incorrect assert in PaymentRequest address editor UI.

chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java
index cad157ccee467e88198d609e90f5ef5c84100e58..1bce4bff65570e328a042d11f8ea21588344ddba 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/ui/EditorFieldModel.java
@@ -168,17 +168,17 @@ public class EditorFieldModel {
 
     /**
      * Updates the value of this field. Does not trigger validation or update the last error
-     * message. Should be called only for text fields.
+     * message. Can be called on a dropdown to initialize it, but will not fire the dropdown
+     * callback.
      *
-     * @param value The new value that the user has typed in.
+     * @param value The new value that the user has typed in or the initial key for the dropdown.
      */
-    public void setValue(@Nullable CharSequence value) {
-        assert mInputTypeHint != INPUT_TYPE_HINT_DROPDOWN;
-        mValue = value;
+    public void setValue(@Nullable CharSequence userTypedValueOrInitialDropdownKey) {
+        mValue = userTypedValueOrInitialDropdownKey;
     }
 
     /**
-     * Updates the dropdown selection.
+     * Updates the dropdown selection and fires the dropdown callback.
      *
      * @param key      The new dropdown key.
      * @param callback The callback to invoke when the change has been processed.