[Android] Make enhanced bookmark editing UI more straightforward.

chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java

Index: chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java b/chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java
index 9fe5e1a2494e2550a78b3c4e092dc09208ed478f..f9babe28b976843a29d9bbbe15af0daae8715e92 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/widget/EmptyAlertEditText.java
@@ -63,14 +63,23 @@ public class EmptyAlertEditText extends AppCompatEditText {
     }
 
     /**
+     *Checks whether the content is empty. Note that this doesn't update an error message.
+     * @return Whether the content is empty.
+     */
+    public boolean isValid() {
+        return getTrimmedText().length() > 0;
+    }
+
+    /**
      * Checks whether the content is empty. If empty, an alert message will be shown.
      * @return Whether the content is empty.
      */
     public boolean validate() {
-        if (getTrimmedText().length() == 0) {
+        if (isValid()) {
+            return true;
+        } else {
             setError(mAlertMessage);
             return false;
         }
-        return true;
     }
 }