Switch all buildbots to GN build

scripts/slave/recipes/pdfium.expected/win_xfa_rel.json

Index: scripts/slave/recipes/pdfium.expected/win_xfa_rel.json
diff --git a/scripts/slave/recipes/pdfium.expected/win_xfa_64_rel_gn.json b/scripts/slave/recipes/pdfium.expected/win_xfa_rel.json
similarity index 88%
rename from scripts/slave/recipes/pdfium.expected/win_xfa_64_rel_gn.json
rename to scripts/slave/recipes/pdfium.expected/win_xfa_rel.json
index 377b335b2b18358a3cde39f8dfb7b6a58798fe77..174324c0f3c66ffcb2588bfd77889c4f24c175d0 100644
--- a/scripts/slave/recipes/pdfium.expected/win_xfa_64_rel_gn.json
+++ b/scripts/slave/recipes/pdfium.expected/win_xfa_rel.json
@@ -7,7 +7,7 @@
       "--master",
       "client.pdfium",
       "--builder",
-      "windows_xfa_64_rel_gn",
+      "windows_xfa_rel",
       "--slave",
       "test_slave",
       "--spec",
@@ -55,8 +55,8 @@
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "env": {
-      "GYP_CHROMIUM_NO_ACTION": "1",
-      "GYP_DEFINES": "pdf_enable_v8=1 pdf_enable_xfa=1 target_arch=x64",
+      "GYP_PDFIUM_NO_ACTION": "1",
+      "GYP_DEFINES": "pdf_enable_v8=1 pdf_enable_xfa=1",
       "PATH": "%(PATH)s;RECIPE_PACKAGE_REPO[depot_tools]"
     },
     "name": "gclient runhooks"
@@ -68,7 +68,7 @@
       "[DEPOT_TOOLS]\\gn.py",
       "--root=[SLAVE_BUILD]\\pdfium",
       "gen",
-      "//out/Release_x64",
+      "//out/Release",
       "--args=is_debug=false pdf_enable_v8=true pdf_enable_xfa=true pdf_use_skia=false pdf_is_standalone=true"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
@@ -78,20 +78,20 @@
     "cmd": [
       "ninja",
       "-C",
-      "[SLAVE_BUILD]\\pdfium\\out\\Release_x64"
+      "[SLAVE_BUILD]\\pdfium\\out\\Release"
     ],
     "name": "compile with ninja"
   },
   {
     "cmd": [
-      "[SLAVE_BUILD]\\pdfium\\out\\Release_x64\\pdfium_unittests.exe"
+      "[SLAVE_BUILD]\\pdfium\\out\\Release\\pdfium_unittests.exe"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "name": "unittests"
   },
   {
     "cmd": [
-      "[SLAVE_BUILD]\\pdfium\\out\\Release_x64\\pdfium_embeddertests.exe"
+      "[SLAVE_BUILD]\\pdfium\\out\\Release\\pdfium_embeddertests.exe"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "name": "embeddertests"
@@ -102,7 +102,7 @@
       "-u",
       "[SLAVE_BUILD]\\pdfium\\testing\\tools\\run_javascript_tests.py",
       "--build-dir",
-      "out\\Release_x64"
+      "out\\Release"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "name": "javascript tests"
@@ -113,7 +113,7 @@
       "-u",
       "[SLAVE_BUILD]\\pdfium\\testing\\tools\\run_pixel_tests.py",
       "--build-dir",
-      "out\\Release_x64"
+      "out\\Release"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "name": "pixel tests"
@@ -124,7 +124,7 @@
       "-u",
       "[SLAVE_BUILD]\\pdfium\\testing\\tools\\run_corpus_tests.py",
       "--build-dir",
-      "out\\Release_x64"
+      "out\\Release"
     ],
     "cwd": "[SLAVE_BUILD]\\pdfium",
     "name": "corpus tests"