Convert ppapi_unittests to run exclusively on Swarming

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 1aa996228870c393211ecf9056de1248119eeb1a..eda21f585980d04f0ee192b8ffdc7d81e55f3c80 100644
--- a/testing/buildbot/chromium.fyi.json
+++ b/testing/buildbot/chromium.fyi.json
@@ -511,6 +511,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -918,6 +921,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -1220,6 +1226,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -1478,6 +1487,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -1673,6 +1685,9 @@
         "test": "midi_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -1910,6 +1925,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -2202,6 +2220,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -2435,6 +2456,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -2683,6 +2707,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -2931,6 +2958,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -3179,6 +3209,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -3427,6 +3460,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -3675,6 +3711,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -3911,6 +3950,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -4135,6 +4177,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -4346,6 +4391,9 @@
         "test": "midi_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -4576,6 +4624,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -4824,6 +4875,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -5072,6 +5126,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -5320,6 +5377,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -5568,6 +5628,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -5816,6 +5879,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -6064,6 +6130,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -6417,6 +6486,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {
@@ -6957,6 +7029,9 @@
         "test": "net_unittests"
       },
       {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
         "test": "ppapi_unittests"
       },
       {