Run native_theme unittests everywhere we run views_unittests.

testing/buildbot/chromium.win.json

Index: testing/buildbot/chromium.win.json
diff --git a/testing/buildbot/chromium.win.json b/testing/buildbot/chromium.win.json
index b5968ca9752844abd24696a51b3251ac6c3d3ca9..bff63f60ca1b452d63da9ebe29d47c5504126d8b 100644
--- a/testing/buildbot/chromium.win.json
+++ b/testing/buildbot/chromium.win.json
@@ -325,6 +325,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "native_theme_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "navigation_unittests"
       },
       {
@@ -794,6 +800,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "native_theme_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "net_unittests"
       },
       {
@@ -1267,6 +1279,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "native_theme_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "net_unittests"
       },
       {
@@ -1674,6 +1692,12 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
+        "test": "native_theme_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "net_unittests"
       },
       {