Set enable_app_list=1 now only on ChromeOS.

testing/buildbot/chromium.fyi.json

Index: testing/buildbot/chromium.fyi.json
diff --git a/testing/buildbot/chromium.fyi.json b/testing/buildbot/chromium.fyi.json
index ec70f750a95fe376164f209a2f431ef24493f775..eb978418d06eaae52cdb3e78b91f03fa3a71625e 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -406,18 +406,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "app_shell_unittests"
       },
       {
@@ -789,18 +777,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "app_shell_unittests"
       },
       {
@@ -1151,9 +1127,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
         "test": "base_unittests"
       },
       {
@@ -1296,9 +1269,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
         "test": "base_unittests"
       },
       {
@@ -1476,9 +1446,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
         "test": "base_unittests"
       },
       {
@@ -1637,18 +1604,6 @@
         "test": "angle_unittests"
       },
       {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -2213,18 +2168,6 @@
         "test": "angle_unittests"
       },
       {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -2700,9 +2643,6 @@
         "test": "angle_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true,
           "shards": 5
@@ -3011,9 +2951,6 @@
         "test": "angle_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
         "swarming": {
           "can_use_on_swarming_builders": true
         },
@@ -8095,18 +8032,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "app_shell_unittests"
       },
       {
@@ -8491,18 +8416,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -8827,12 +8740,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
-        "test": "app_list_presenter_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -9034,18 +8941,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -9376,12 +9271,6 @@
         "test": "accessibility_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
-        "test": "app_list_presenter_unittests"
-      },
-      {
         "test": "app_shell_unittests"
       },
       {
@@ -10004,18 +9893,6 @@
         "swarming": {
           "can_use_on_swarming_builders": true
         },
-        "test": "app_list_presenter_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
-        "test": "app_list_unittests"
-      },
-      {
-        "swarming": {
-          "can_use_on_swarming_builders": true
-        },
         "test": "app_shell_unittests"
       },
       {