DevTools: [JSDocValidator] Require enum keys to start with an uppercase letter

Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java

Index: Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java
diff --git a/Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java b/Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java
index 0ba48eb8aaaccb640ad2fbca039bb740c1e8b8b3..43b956b2a36805dbe41301a4d08f2d25e4c9a168 100644
--- a/Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java
+++ b/Source/devtools/scripts/compiler-runner/src/org/chromium/devtools/compiler/DevToolsCodingConvention.java
@@ -7,11 +7,16 @@ public class DevToolsCodingConvention extends CodingConventions.Proxy {
     private static final long serialVersionUID = 1L;
 
     public DevToolsCodingConvention() {
-      super(CodingConventions.getDefault());
+        super(CodingConventions.getDefault());
     }
 
     @Override
     public boolean isPrivate(String name) {
-      return name.length() > 1 && name.charAt(0) == '_' && name.charAt(1) != '_';
+        return name.length() > 1 && name.charAt(0) == '_' && name.charAt(1) != '_';
+    }
+
+    @Override
+    public boolean isValidEnumKey(String key) {
+        return !key.isEmpty() && Character.isUpperCase(key.charAt(0));
     }
 }