Move SkAndroidSDKCanvas to tools and ensure that it is built on all Android builds

gyp/bench.gyp

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # GYP file to build performance testbench.
 #
 {
   'includes': [
     'apptype_console.gypi',
   ],
@@ skipping 21 matching lines @@
           'libraries': [
             '-lskia',
             '-landroid',
             '-lhwui',
             '-lutils',
           ],
           'include_dirs': [
             '../../../frameworks/base/libs/hwui/',
           ],
           'dependencies': [
-            'utils.gyp:android_utils',
+            'tools.gyp:android_utils',
           ],
         }],
       ],
     },
   ],
 }