Revert "Drop Trusty from WebKit Linux builders"

This reverts commit 622d8879.

Reason for revert: 
infra failure
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/WebKit%20Linux%20MSAN

Original change's description:
> Drop Trusty from WebKit Linux builders
> 
> I applied following command to renmae
> $ git grep --name-only 'WebKit Linux Trusty ' testing/ infra/ | \
>   xargs sed -i 's/WebKit Linux Trusty /WebKit Linux /g'
> 
> This is step 3 written in
> https://chrome-internal-review.googlesource.com/c/infradata/config/+/1341927
> 
> Bug: 954450
> Change-Id: Ia29366bcdb60d7b28b44964a89d0033855866b8a
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1635069
> Reviewed-by: John Budorick <jbudorick@chromium.org>
> Reviewed-by: Ben Pastene <bpastene@chromium.org>
> Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#664591}

TBR=tikuta@chromium.org,bpastene@chromium.org,jbudorick@chromium.org

Change-Id: I86650591a406e54eda6c39d4c21eab832440b0ad
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 954450
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1636661Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664610}

infra/config/cr-buildbucket.cfg

@@ -2254,7 +2254,7 @@ buckets {
       mixins: "fyi-ci"
     }
     builders {
-      name: "WebKit Linux MSAN"
+      name: "WebKit Linux Trusty MSAN"
       dimensions: "os:Ubuntu-14.04"
       mixins: "memory-ci"
     }
@@ -2287,7 +2287,7 @@ buckets {
       mixins: "fuzz-ci"
     }
     builders {
-      name: "WebKit Linux ASAN"
+      name: "WebKit Linux Trusty ASAN"
       dimensions: "os:Ubuntu-14.04"
       mixins: "memory-ci"
     }
@@ -2344,7 +2344,7 @@ buckets {
       mixins: "chromium-ci"
     }
     builders {
-      name: "WebKit Linux Leak"
+      name: "WebKit Linux Trusty Leak"
       dimensions: "os:Ubuntu-14.04"
       mixins: "memory-ci"
     }

infra/config/luci-milo.cfg

@@ -711,17 +711,17 @@ consoles {
     short_name: "tst"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux ASAN"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty ASAN"
     category: "chromium.memory|linux|webkit"
     short_name: "asn"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux MSAN"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty MSAN"
     category: "chromium.memory|linux|webkit"
     short_name: "msn"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux Leak"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty Leak"
     category: "chromium.memory|linux|webkit"
     short_name: "lk"
   }
@@ -1127,17 +1127,17 @@ consoles {
     short_name: "tst"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux ASAN"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty ASAN"
     category: "linux|webkit"
     short_name: "asn"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux MSAN"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty MSAN"
     category: "linux|webkit"
     short_name: "msn"
   }
   builders {
-    name: "buildbucket/luci.chromium.ci/WebKit Linux Leak"
+    name: "buildbucket/luci.chromium.ci/WebKit Linux Trusty Leak"
     category: "linux|webkit"
     short_name: "lk"
   }

infra/config/luci-scheduler.cfg

@@ -273,9 +273,9 @@ trigger {
   triggers: "UBSan vptr Release"
   triggers: "UBSanVptr Linux"
   triggers: "VR Linux"
-  triggers: "WebKit Linux ASAN"
-  triggers: "WebKit Linux Leak"
-  triggers: "WebKit Linux MSAN"
+  triggers: "WebKit Linux Trusty ASAN"
+  triggers: "WebKit Linux Trusty Leak"
+  triggers: "WebKit Linux Trusty MSAN"
   triggers: "Win 10 Fast Ring"
   triggers: "Win ASan Release Media"
   triggers: "Win ASan Release"
@@ -4108,32 +4108,32 @@ job {
 }
 
 job {
-  id: "WebKit Linux ASAN"
+  id: "WebKit Linux Trusty ASAN"
   acl_sets: "default"
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "WebKit Linux ASAN"
+    builder: "WebKit Linux Trusty ASAN"
   }
 }
 
 job {
-  id: "WebKit Linux Leak"
+  id: "WebKit Linux Trusty Leak"
   acl_sets: "default"
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "WebKit Linux Leak"
+    builder: "WebKit Linux Trusty Leak"
   }
 }
 
 job {
-  id: "WebKit Linux MSAN"
+  id: "WebKit Linux Trusty MSAN"
   acl_sets: "default"
   buildbucket: {
     server: "cr-buildbucket.appspot.com"
     bucket: "luci.chromium.ci"
-    builder: "WebKit Linux MSAN"
+    builder: "WebKit Linux Trusty MSAN"
   }
 }
 

testing/buildbot/chromium.memory.json

@@ -13690,7 +13690,7 @@
       }
     ]
   },
-  "WebKit Linux ASAN": {
+  "WebKit Linux Trusty ASAN": {
     "isolated_scripts": [
       {
         "args": [
@@ -13722,7 +13722,7 @@
       }
     ]
   },
-  "WebKit Linux Leak": {
+  "WebKit Linux Trusty Leak": {
     "isolated_scripts": [
       {
         "args": [
@@ -13754,7 +13754,7 @@
       }
     ]
   },
-  "WebKit Linux MSAN": {
+  "WebKit Linux Trusty MSAN": {
     "isolated_scripts": [
       {
         "args": [

testing/buildbot/chromium.webkit.json

 {
   "AAAAA1 AUTOGENERATED FILE DO NOT EDIT": {},
   "AAAAA2 See generate_buildbot_json.py to make changes": {},
-  "WebKit Linux ASAN": {
+  "WebKit Linux Trusty ASAN": {
     "isolated_scripts": [
       {
         "args": [
@@ -33,7 +33,7 @@
       }
     ]
   },
-  "WebKit Linux Leak": {
+  "WebKit Linux Trusty Leak": {
     "isolated_scripts": [
       {
         "args": [
@@ -65,7 +65,7 @@
       }
     ]
   },
-  "WebKit Linux MSAN": {
+  "WebKit Linux Trusty MSAN": {
     "isolated_scripts": [
       {
         "args": [

testing/buildbot/test_suite_exceptions.pyl

@@ -1758,7 +1758,7 @@
         ],
       },
       # chromium.webkit.
-      'WebKit Linux ASAN': {
+      'WebKit Linux Trusty ASAN': {
         'args': [
           '--additional-expectations',
           '../../third_party/blink/web_tests/ASANExpectations',
@@ -1775,7 +1775,7 @@
           'shards': 20,
         },
       },
-      'WebKit Linux Leak': {
+      'WebKit Linux Trusty Leak': {
         'args': [
           '--additional-expectations',
           '../../third_party/blink/web_tests/LeakExpectations',
@@ -1792,7 +1792,7 @@
           'shards': 10,
         },
       },
-      'WebKit Linux MSAN': {
+      'WebKit Linux Trusty MSAN': {
         'args': [
           '--additional-expectations',
           '../../third_party/blink/web_tests/MSANExpectations',

testing/buildbot/waterfalls.pyl

@@ -3757,7 +3757,7 @@
           '--test-launcher-print-test-stdio=always',
         ],
       },
-      'WebKit Linux ASAN': {
+      'WebKit Linux Trusty ASAN': {
         'mixins': [
           'linux-trusty',
         ],
@@ -3765,7 +3765,7 @@
           'isolated_scripts': 'chromium_webkit_isolated_scripts',
         },
       },
-      'WebKit Linux Leak': {
+      'WebKit Linux Trusty Leak': {
         'mixins': [
           'linux-trusty',
         ],
@@ -3773,7 +3773,7 @@
           'isolated_scripts': 'chromium_webkit_isolated_scripts',
         },
       },
-      'WebKit Linux MSAN': {
+      'WebKit Linux Trusty MSAN': {
         'mixins': [
           'linux-trusty',
         ],
@@ -3870,7 +3870,7 @@
     'machines': {
       # TODO(jchinlee): The below three builders are in chromium.memory on LUCI,
       # see crbug.com/790309, crbug.com/790294, crbug.com/790286.
-      'WebKit Linux ASAN': {
+      'WebKit Linux Trusty ASAN': {
         'mixins': [
           'linux-trusty',
         ],
@@ -3878,7 +3878,7 @@
           'isolated_scripts': 'chromium_webkit_isolated_scripts',
         },
       },
-      'WebKit Linux Leak': {
+      'WebKit Linux Trusty Leak': {
         'mixins': [
           'linux-trusty',
         ],
@@ -3886,7 +3886,7 @@
           'isolated_scripts': 'chromium_webkit_isolated_scripts',
         },
       },
-      'WebKit Linux MSAN': {
+      'WebKit Linux Trusty MSAN': {
         'mixins': [
           'linux-trusty',
         ],