Add a JSON sanitizer.

components/BUILD.gn

Index: components/BUILD.gn
diff --git a/components/BUILD.gn b/components/BUILD.gn
index 8c4c3a7131cd5dce49fca30792275d8b49895db6..782614d3300dcdffd0ab2ac15ad1f94dd6c11252 100644
--- a/components/BUILD.gn
+++ b/components/BUILD.gn
@@ -295,6 +295,7 @@ test("components_unittests") {
     "//components/offline_pages:unit_tests",
     "//components/omnibox:unit_tests",
     "//components/packed_ct_ev_whitelist:unit_tests",
+    "//components/safe_json:unit_tests",
     "//components/undo:unit_tests",
     "//components/update_client:unit_tests",
     "//components/variations:unit_tests",
@@ -347,7 +348,10 @@ test("components_unittests") {
   }
 
   if (!is_ios) {
-    deps += [ "//components/scheduler:unit_tests" ]
+    deps += [
+      "//components/safe_json:unit_tests",

[sdefresne, 2015/07/10 14:01:19]

I don't understand this addition. At line 298, you're adding
"//components/safe_json:unit_tests" to the list of deps, so there is no need to
add it again here when target is not iOS. Either remove it from here or from
line 298 (if the tests should not be run on iOS). Since safe_json depends on
//content, I would guess you should do the later.

[Bernhard Bauer, 2015/07/10 14:09:09]

You're right, the tests shouldn't be run on iOS. Removed the line above.

+      "//components/scheduler:unit_tests",
+    ]
   }
 }