[Checkstyle] Enable additional name checks for Java.

tools/android/checkstyle/chromium-style-5.0.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE module PUBLIC "-//Puppy Crawl//DTD Check Configuration 1.3//EN" "http://www.puppycrawl.com/dtds/configuration_1_3.dtd">
 
 <!--
   See installation instructions: https://sites.google.com/a/chromium.org/dev/checkstyle
 -->
 <module name="Checker">
   <property name="severity" value="warning"/>
   <property name="charset" value="UTF-8"/>
   <module name="TreeWalker">
@@ skipping 24 matching lines @@
       <property name="allowMissingParamTags" value="true"/>
       <property name="allowMissingPropertyJavadoc" value="true"/>
       <property name="allowMissingReturnTag" value="true"/>
       <property name="allowMissingThrowsTags" value="true"/>
     </module>
     <module name="PackageName">
       <property name="severity" value="error"/>
       <property name="format" value="^[a-z]+(\.[a-z][a-z0-9_]{1,})*$"/>
     </module>
     <module name="TypeName">
-      <property name="severity" value="warning"/>
+      <property name="severity" value="error"/>
     </module>
     <module name="ConstantName">
       <property name="severity" value="error"/>
       <property name="format" value="^([A-Z][A-Z0-9]*(_[A-Z0-9]+)*)|(s[A-Z][a-zA-Z0-9]*)$"/>
       <message key="name.invalidPattern" value="Static final field names must either be all caps (e.g. int HEIGHT_PX) for 'true' constants, or start with s (e.g. AtomicInteger sNextId or Runnable sSuspendTask) for fields with mutable state or that don't 'feel' like constants."/>
     </module>
     <!-- Non-public, non-static field names start with m. -->
     <module name="MemberName">
         <property name="severity" value="error"/>
         <property name="format" value="^m[A-Z][a-zA-Z0-9]*$"/>
         <property name="applyToPublic" value="false"/>
         <message key="name.invalidPattern" value="Non-public, non-static field names start with m."/>
     </module>
     <!-- Static field names start with s. -->
     <module name="StaticVariableName">
         <property name="severity" value="error"/>
         <property name="format" value="^s[A-Z][a-zA-Z0-9]*$"/>
         <property name="applyToPublic" value="false"/>
         <message key="name.invalidPattern" value="Static field names start with s."/>
     </module>
-    <module name="MethodName" />
+    <module name="MethodName">
+        <property name="severity" value="error"/>
+        <property name="format" value="^[a-z][a-zA-Z0-9_]*$"/>
+        <message key="name.invalidPattern" value="Method names should start with a lower case letter (e.g. getWidth())"/>
+    </module>
     <module name="ParameterName">
-      <property name="severity" value="warning"/>
+      <property name="severity" value="error"/>
     </module>
     <module name="LocalFinalVariableName">
-      <property name="severity" value="warning"/>
+      <property name="severity" value="error"/>
+      <property name="format" value="^m|s|((([ms][a-z0-9])|([a-ln-rt-z]))[a-zA-Z0-9]*)$"/>
+      <message key="name.invalidPattern" value="Local variables should be camel-cased (e.g. int minWidth = 4)."/>
     </module>
     <module name="LocalVariableName">
-      <property name="severity" value="warning"/>
+      <property name="severity" value="error"/>
+      <property name="format" value="^m|s|((([ms][a-z0-9])|([a-ln-rt-z]))[a-zA-Z0-9]*)$"/>
+      <message key="name.invalidPattern" value="Local variables should be camel-cased (e.g. int minWidth = 4)."/>
     </module>
     <module name="LineLength">
       <property name="severity" value="error"/>
       <property name="ignorePattern" value="^import.*$" />
       <property name="max" value="100"/>
     </module>
     <module name="LeftCurly">
       <property name="severity" value="warning"/>
     </module>
     <module name="RightCurly">
@@ skipping 43 matching lines @@
       <property name="severity" value="warning"/>
     </module>
     <module name="ImportOrder">
       <property name="severity" value="error"/>
       <message key="import.ordering" value="Wrong order for {0} import. Use :JavaImportOrganize (ECLIM) or Ctrl+Shift+O (Eclipse) to sort imports"/>
       <property name="groups" value="android, com, dalvik, gov, junit, libcore, net, org, java, javax"/>
       <property name="ordered" value="true"/>
       <property name="option" value="top"/>
       <property name="separated" value="true"/>
     </module>
+    <!-- TODO(aurimas): make indentation an error once https://github.com/checkstyle/checkstyle/issues/255 is fixed. -->
     <module name="Indentation">
+      <property name="severity" value="warning"/>
       <property name="basicOffset" value="4"/>
+      <property name="throwsIndent" value="8"/>
     </module>
   </module>
   <module name="FileTabCharacter"/>
   <module name="RegexpSingleline">
     <property name="format" value="((//.*)|(\*.*))FIXME"/>
     <property name="message" value="TODO is preferred to FIXME.  e.g. &quot;TODO(johndoe):"/>
   </module>
   <module name="RegexpSingleline">
     <property name="format" value="((//.*)|(\*.*))(?&lt;!TODO\(.{0,100})(TODO[^(])|(TODO\([^)]*$)"/>
     <property name="message" value="All TODOs should be named.  e.g. &quot;TODO(johndoe):"/>
   </module>
   <module name="RegexpSingleline">
     <property name="severity" value="error"/>
     <property name="format" value="[ \t]+$"/>
     <property name="message" value="Trailing whitespace"/>
     </module>
   <module name="RegexpHeader">
     <property name="severity" value="error"/>
     <property name="header" value="^// Copyright 20\d\d The Chromium Authors. All rights reserved.$\n^// Use of this source code is governed by a BSD-style license that can be$\n^// found in the LICENSE file.$"/>
   </module>
 </module>