Reland of Use the crrev recipe module to fetch commit hashes.

scripts/slave/recipes/bisect.expected/basic.json

Index: scripts/slave/recipes/bisect.expected/basic.json
diff --git a/scripts/slave/recipes/bisect.expected/basic.json b/scripts/slave/recipes/bisect.expected/basic.json
index 7f29d7e811f2226416a23053b5497f0d1c95c360..c4a0417c2de878984a1241b66b93c4ad117b97a6 100644
--- a/scripts/slave/recipes/bisect.expected/basic.json
+++ b/scripts/slave/recipes/bisect.expected/basic.json
@@ -213,36 +213,46 @@
   },
   {
     "cmd": [
-      "git",
-      "log",
-      "--format=hash:%H",
-      "--grep",
-      "^Cr-Commit-Position: refs/heads/master@{#306478}",
-      "-1",
-      "origin/master"
+      "python",
+      "-u",
+      "RECIPE_MODULE[build::crrev]/resources/crrev_client.py",
+      "get_numbering",
+      "--params-file",
+      "{\"number\": 306478, \"numbering_identifier\": \"refs/heads/master\", \"numbering_type\": \"COMMIT_POSITION\", \"project\": \"chromium\", \"repo\": \"chromium/src\"}",
+      "--attempts",
+      "3"
     ],
-    "cwd": "[SLAVE_BUILD]/src",
-    "name": "Resolving reference range.resolving commit_pos 306478",
-    "stdout": "/path/to/tmp/",
+    "cwd": "[SLAVE_BUILD]",
+    "name": "Resolving reference range.crrev get commit hash for refs/heads/master@{#306478}",
+    "stdout": "/path/to/tmp/json",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"git_sha\": \"a6298e4afedbf2cd461755ea6f45b0ad64222222\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {
     "cmd": [
-      "git",
-      "log",
-      "--format=hash:%H",
-      "--grep",
-      "^Cr-Commit-Position: refs/heads/master@{#306475}",
-      "-1",
-      "origin/master"
+      "python",
+      "-u",
+      "RECIPE_MODULE[build::crrev]/resources/crrev_client.py",
+      "get_numbering",
+      "--params-file",
+      "{\"number\": 306475, \"numbering_identifier\": \"refs/heads/master\", \"numbering_type\": \"COMMIT_POSITION\", \"project\": \"chromium\", \"repo\": \"chromium/src\"}",
+      "--attempts",
+      "3"
     ],
-    "cwd": "[SLAVE_BUILD]/src",
-    "name": "Resolving reference range.resolving commit_pos 306475",
-    "stdout": "/path/to/tmp/",
+    "cwd": "[SLAVE_BUILD]",
+    "name": "Resolving reference range.crrev get commit hash for refs/heads/master@{#306475}",
+    "stdout": "/path/to/tmp/json",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"git_sha\": \"e28dc0d49c331def2a3bbf3ddd0096eb51551155\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
     ]
   },
   {