Set enable_app_list=1 now only on ChromeOS.

testing/buildbot/chromium.memory.fyi.json

Index: testing/buildbot/chromium.memory.fyi.json
diff --git a/testing/buildbot/chromium.memory.fyi.json b/testing/buildbot/chromium.memory.fyi.json
index 739c944968bc86fc91132ba7c672c2da67681a27..27431a3a50df12f9009b93169a6c8ffe4235e42c 100644
--- a/testing/buildbot/chromium.memory.fyi.json
+++ b/testing/buildbot/chromium.memory.fyi.json
@@ -251,8 +251,6 @@
     "additional_compile_targets": [
       "accessibility_unittests",
       "angle_unittests",
-      "app_list_unittests",
-      "app_list_presenter_unittests",
       "aura_unittests",
       "base_unittests",
       "blink_heap_unittests",
@@ -302,8 +300,6 @@
     "additional_compile_targets": [
       "accessibility_unittests",
       "angle_unittests",
-      "app_list_unittests",
-      "app_list_presenter_unittests",
       "aura_unittests",
       "base_unittests",
       "blink_heap_unittests",
@@ -666,18 +662,6 @@
         "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": "aura_unittests"
       },
       {
@@ -986,18 +970,6 @@
         "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": "aura_unittests"
       },
       {
@@ -2284,12 +2256,6 @@
         "test": "angle_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
-        "test": "app_list_presenter_unittests"
-      },
-      {
         "test": "aura_unittests"
       },
       {
@@ -2354,12 +2320,6 @@
         "test": "angle_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
-        "test": "app_list_presenter_unittests"
-      },
-      {
         "test": "aura_unittests"
       },
       {
@@ -2499,12 +2459,6 @@
         "test": "angle_unittests"
       },
       {
-        "test": "app_list_unittests"
-      },
-      {
-        "test": "app_list_presenter_unittests"
-      },
-      {
         "test": "aura_unittests"
       },
       {