Build libANGLE only in MSVC goma canary builder

Currently MSVC builder cannot build v8 and pdfium with cl.exe.

TBR=dpranke@chromium.org, thakis@chromium.org

Change-Id: Ic7fc3bd57583f33f56a795e1534e5c04774c6612
Reviewed-on: https://chromium-review.googlesource.com/1152645Reviewed-by: Fumitoshi Ukai <ukai@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578584}

testing/buildbot/chromium.fyi.json

@@ -2650,8 +2650,6 @@
   },
   "Win cl.exe Goma Canary LocalOutputCache": {
     "additional_compile_targets": [
-      "v8:gn_all",
-      "pdfium_all",
       "libANGLE"
     ]
   },
@@ -2696,8 +2694,6 @@
   },
   "WinMSVC64 Goma Canary": {
     "additional_compile_targets": [
-      "v8:gn_all",
-      "pdfium_all",
       "libANGLE"
     ]
   },

testing/buildbot/gn_isolate_map.pyl

@@ -941,10 +941,6 @@
     "label": "//pdf:pdf_unittests",
     "type": "console_test_launcher",
   },
-  "pdfium_all": {
-    "label": "//third_party/pdfium:pdfium_all",
-    "type": "additional_compile_target",
-  },
   "pdfium_test": {
     "label": "//third_party/pdfium/samples:pdfium_test",
     "type": "additional_compile_target",
@@ -1254,10 +1250,6 @@
     "label": "//url:url_unittests",
     "type": "console_test_launcher",
   },
-  "v8:gn_all": {
-    "label": "//v8:gn_all",
-    "type": "additional_compile_target",
-  },
   "video_decode_accelerator_unittest": {
     "label": "//media/gpu:video_decode_accelerator_unittest",
     "type": "raw",

testing/buildbot/waterfalls.pyl

@@ -2590,7 +2590,7 @@
       'Win cl.exe Goma Canary LocalOutputCache': {
         # Build only chromium's subproject using cl.exe.
         'additional_compile_targets': [
-          'v8:gn_all', 'pdfium_all', 'libANGLE',
+          'libANGLE',
         ],
       },
       'Win7 Builder (dbg) Goma Canary': {
@@ -2613,7 +2613,7 @@
       'WinMSVC64 Goma Canary': {
         # Build only chromium's subproject using cl.exe.
         'additional_compile_targets': [
-          'v8:gn_all', 'pdfium_all', 'libANGLE',
+          'libANGLE',
         ],
       },
       'win-annotator-rel': {