Promote deterministic build CI to real CI (tree closer, except for the Clang builder)

scripts/slave/recipes/deterministic_build.expected/full_chromium_swarm_Windows_Clang_deterministic_build.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\cleanup_temp.py"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "cleanup_temp"
   },
@@ skipping 62 matching lines @@
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]\\gclient.py",
       "runhooks"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
-      "GYP_DEFINES": "clang=1 component=static_library dont_embed_build_metadata=1 fastbuild=1 target_arch=ia32 test_isolation_mode=prepare"
+      "GYP_DEFINES": "clang=1 component=static_library dont_embed_build_metadata=1 fastbuild=1 target_arch=ia32 test_isolation_mode=prepare",
+      "LLVM_FORCE_HEAD_REVISION": "YES"
     },
     "name": "gclient runhooks"
   },
   {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]\\src",
       "--output-json",
       "/path/to/tmp/json"
     ],
     "cwd": "[SLAVE_BUILD]",
+    "env": {
+      "LLVM_FORCE_HEAD_REVISION": "YES"
+    },
     "name": "clang_revision",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"clang_revision\": \"123456-7\"@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\compile.py",
       "--target",
       "Release",
       "--src-dir",
       "[SLAVE_BUILD]\\src",
       "--build-tool",
       "ninja",
       "--compiler",
       "clang",
       "--clobber",
       "--",
       "chromium_swarm_tests"
     ],
     "cwd": "[SLAVE_BUILD]",
+    "env": {
+      "LLVM_FORCE_HEAD_REVISION": "YES"
+    },
     "name": "First build"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[isolate]\\resources\\remove_build_metadata.py",
       "--build-dir",
       "[SLAVE_BUILD]\\src\\out\\Release",
       "--src-dir",
@@ skipping 65 matching lines @@
   },
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS]\\gclient.py",
       "runhooks"
     ],
     "cwd": "[SLAVE_BUILD]",
     "env": {
-      "GYP_DEFINES": "clang=1 component=static_library dont_embed_build_metadata=1 fastbuild=1 target_arch=ia32 test_isolation_mode=prepare"
+      "GYP_DEFINES": "clang=1 component=static_library dont_embed_build_metadata=1 fastbuild=1 target_arch=ia32 test_isolation_mode=prepare",
+      "LLVM_FORCE_HEAD_REVISION": "YES"
     },
     "name": "gclient runhooks (2)"
   },
   {
     "allow_subannotations": true,
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\clang_revision.py",
       "--src-dir",
       "[SLAVE_BUILD]\\src",
       "--output-json",
       "/path/to/tmp/json"
     ],
     "cwd": "[SLAVE_BUILD]",
+    "env": {
+      "LLVM_FORCE_HEAD_REVISION": "YES"
+    },
     "name": "clang_revision (2)",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@json.output@{@@@",
       "@@@STEP_LOG_LINE@json.output@  \"clang_revision\": \"123456-7\"@@@",
       "@@@STEP_LOG_LINE@json.output@}@@@",
       "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "[BUILD]\\scripts\\slave\\compile.py",
       "--target",
       "Release",
       "--src-dir",
       "[SLAVE_BUILD]\\src",
       "--build-tool",
       "ninja",
       "--compiler",
       "clang",
       "--clobber",
       "--",
       "chromium_swarm_tests"
     ],
     "cwd": "[SLAVE_BUILD]",
+    "env": {
+      "LLVM_FORCE_HEAD_REVISION": "YES"
+    },
     "name": "Second build"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[isolate]\\resources\\remove_build_metadata.py",
       "--build-dir",
       "[SLAVE_BUILD]\\src\\out\\Release",
       "--src-dir",
@@ skipping 68 matching lines @@
       "[SLAVE_BUILD]\\src\\out\\Release.1",
       "--second-build-dir",
       "[SLAVE_BUILD]\\src\\out\\Release.2",
       "--target-platform",
       "win"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "compare_build_artifacts"
   }
 ]