Set the MAXLEN/maxLength attribute for strings in ADM[X] templates.

grit/format/policy_templates/writers/adm_writer_unittest.py

Index: grit/format/policy_templates/writers/adm_writer_unittest.py
diff --git a/grit/format/policy_templates/writers/adm_writer_unittest.py b/grit/format/policy_templates/writers/adm_writer_unittest.py
index 82374bb099df12076784370c1c9603c6f718ffb0..2481874fe3e813f9acc31e4a20dce9c0fb39f500 100644
--- a/grit/format/policy_templates/writers/adm_writer_unittest.py
+++ b/grit/format/policy_templates/writers/adm_writer_unittest.py
@@ -250,6 +250,7 @@ With a newline.""",
 
       PART !!StringPolicy_Part  EDITTEXT
         VALUENAME "StringPolicy"
+        MAXLEN 1000000
       END PART
     END POLICY
 
@@ -266,6 +267,7 @@ With a newline.""",
 
       PART !!StringPolicy_Part  EDITTEXT
         VALUENAME "StringPolicy"
+        MAXLEN 1000000
       END PART
     END POLICY
 
@@ -734,6 +736,7 @@ ListPolicy_Part="Label of list policy."
 
       PART !!DictionaryPolicy_Part  EDITTEXT
         VALUENAME "DictionaryPolicy"
+        MAXLEN 1000000
       END PART
     END POLICY
 
@@ -750,6 +753,7 @@ ListPolicy_Part="Label of list policy."
 
       PART !!DictionaryPolicy_Part  EDITTEXT
         VALUENAME "DictionaryPolicy"
+        MAXLEN 1000000
       END PART
     END POLICY
 
@@ -942,6 +946,7 @@ With a newline."""
 
         PART !!Policy2_Part  EDITTEXT
           VALUENAME "Policy2"
+          MAXLEN 1000000
         END PART
       END POLICY