Add a JSON sanitizer.

tools/android/eclipse/.classpath

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- {% block header_message %}
 
 Eclipse classpath. See instructions at
 https://code.google.com/p/chromium/wiki/AndroidEclipseDev for setting up Eclipse
 for Chrome Android development.
 
 Obsolete entries can be found using:
 
   for f in $(grep -oP '(?<= path=")[^"]*' tools/android/eclipse/.classpath); do
@@ skipping 26 matching lines @@
     <classpathentry kind="src" path="components/bookmarks/common/android/java/src"/>
     <classpathentry kind="src" path="components/cronet/android/java/src"/>
     <classpathentry kind="src" path="components/dom_distiller/android/java/src"/>
     <classpathentry kind="src" path="components/gcm_driver/android/java/src"/>
     <classpathentry kind="src" path="components/invalidation/impl/android/java/src"/>
     <classpathentry kind="src" path="components/invalidation/impl/android/javatests/src"/>
     <classpathentry kind="src" path="components/invalidation/impl/android/junit/src"/>
     <classpathentry kind="src" path="components/navigation_interception/android/java/src"/>
     <classpathentry kind="src" path="components/precache/android/java/src"/>
     <classpathentry kind="src" path="components/precache/android/javatests/src"/>
+    <classpathentry kind="src" path="components/safe_json/android/java/src"/>
     <classpathentry kind="src" path="components/service_tab_launcher/android/java/src"/>
     <classpathentry kind="src" path="components/variations/android/java/src"/>
     <classpathentry kind="src" path="components/web_contents_delegate_android/android/java/src"/>
     <classpathentry kind="src" path="content/public/android/java/src"/>
     <classpathentry kind="src" path="content/public/android/javatests/src"/>
     <classpathentry kind="src" path="content/public/test/android/javatests/src"/>
     <classpathentry kind="src" path="content/shell/android/browsertests_apk/src"/>
     <classpathentry kind="src" path="content/shell/android/java/src"/>
     <classpathentry kind="src" path="content/shell/android/javatests/src"/>
     <classpathentry kind="src" path="content/shell/android/linker_test_apk/src"/>
@@ skipping 97 matching lines @@
     <classpathentry kind="lib" path="out/Debug/lib.java/jsr_305_javalib.jar"/>
     <classpathentry kind="lib" path="out/Debug/lib.java/net_java.jar"/>
     <classpathentry kind="output" path="out/bin"/>
 
     <!-- {% block additional_entries %} -->
     <!-- When this file is processed as a jinja2 template, additional
          <classpathentry> elements will be inserted here. -->
     <!-- {% endblock %} -->
 
 </classpath>