Extend the "Clear data" button translation limit to 30 chars.

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index 2c7849530c3f264a337552aa6a9010dd62b7cffd..2394abe02a3d600430f0b8d83fbf62e89e7971b8 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -465,7 +465,7 @@ Your Google account may have other forms of browsing history like searches and a
       <message name="IDS_CLEAR_BROWSING_DATA_PROGRESS_TITLE" desc='Title for the progress dialog used when waiting for "clear browsing data" to complete.'>
         Clearing browsing data
       </message>
-      <message name="IDS_CLEAR_DATA_DELETE" desc="Button that allows the user to clear their browsing data. [CHAR-LIMIT=20]">
+      <message name="IDS_CLEAR_DATA_DELETE" desc="Button that allows the user to clear their browsing data. [CHAR-LIMIT=30]">
         Clear data
       </message>
       <message name="IDS_CLEAR_BROWSING_DATA_PROGRESS_MESSAGE" desc='Message on the progress dialog used when waiting for "clear browsing data" to complete.'>