Remove INJECT_EVENTS permissions from test APKs.

build/android/lint/suppressions.xml

 <?xml version="1.0" encoding="utf-8"?>
 <lint>
   <!--
 STOP! It looks like you want to suppress some lint errors:
 - Have you tried identifing the offending patch?
   Ask the author for a fix and/or revert the patch.
 - It is preferred to add suppressions in the code instead of
   sweeping it under the rug here. See:
 
     http://developer.android.com/tools/debugging/improving-w-lint.html
@@ skipping 65 matching lines @@
     <ignore path="org/chromium/base/JavaHandlerThread.class"/>
     <ignore path="org/chromium/base/SysUtils.class"/>
     <ignore path="org/chromium/chrome/browser/TtsPlatformImpl.class"/>
     <ignore path="org/chromium/chrome/browser/TtsPlatformImpl$*.class"/>
     <ignore path="chrome/android/java/res/values-v17/styles.xml"/>
   </issue>
   <issue id="OldTargetApi">
     <ignore path="AndroidManifest.xml"/>
   </issue>
   <issue id="Overdraw" severity="ignore"/>
-  <!-- TODO(newt): remove if INJECT_EVENTS is not needed crbug.com/502028 -->
-  <issue id="ProtectedPermissions" severity="ignore"/>
   <issue id="Recycle" severity="ignore"/>
   <issue id="Registered" severity="ignore"/>
   <issue id="RtlCompat" severity="ignore"/>
   <issue id="RtlEnabled" severity="ignore"/>
   <issue id="RtlSymmetry" severity="ignore"/>
   <issue id="SdCardPath">
     <ignore path="content/public/android/java/src/org/chromium/content/browser/MediaResourceGetter.java"/>
   </issue>
   <issue id="SetJavaScriptEnabled" severity="ignore"/>
   <issue id="UnusedResources">
     <!--
       TODO(pkotwicz): Re-enable after the chrome_java and chrome_staging_java
       targets have been merged. crbug.com/484934
     -->
     <ignore path="chrome/android/java/res" />
     <ignore path="content/shell/android/shell_apk/res/layout/content_shell_activity.xml" />
     <ignore path="content/shell/android/shell_apk/res/values/strings.xml" />
   </issue>
   <issue id="SignatureOrSystemPermissions" severity="ignore"/>
   <issue id="UnusedAttribute" severity="ignore"/>
   <issue id="ViewConstructor" severity="ignore"/>
   <issue id="WrongCall" severity="ignore"/>
 </lint>