Fix releases script after git migration.

BUG=chromium:410721
LOG=n
TBR=tandrii@chromium.org
TEST=script_test.py

Review URL: https://codereview.chromium.org/725073002

Cr-Commit-Position: refs/heads/master@{#25349}

tools/push-to-trunk/git_recipes.py

@@ -244,17 +244,6 @@ class GitRecipesMixin(object):
   def GitFetchOrigin(self, **kwargs):
     self.Git("fetch origin", **kwargs)
 
-  def GitConvertToSVNRevision(self, git_hash, **kwargs):
-    result = self.Git(MakeArgs(["rev-list", "-n", "1", git_hash]), **kwargs)
-    if not result or not SHA1_RE.match(result):
-      raise GitFailedException("Git hash %s is unknown." % git_hash)
-    log = self.GitLog(n=1, format="%B", git_hash=git_hash, **kwargs)
-    for line in reversed(log.splitlines()):
-      match = ROLL_DEPS_GIT_SVN_ID_RE.match(line.strip())
-      if match:
-        return match.group(1)
-    raise GitFailedException("Couldn't convert %s to SVN." % git_hash)
-
   @Strip
   # Copied from bot_update.py and modified for svn-like numbers only.
   def GetCommitPositionNumber(self, git_hash, **kwargs):

tools/push-to-trunk/releases.py

@@ -322,7 +322,7 @@ def ConvertToCommitNumber(step, revision):
   # Simple check for git hashes.
   if revision.isdigit() and len(revision) < 8:
     return revision
-  return step.GitConvertToSVNRevision(
+  return step.GetCommitPositionNumber(
       revision, cwd=os.path.join(step._options.chromium, "v8"))
 
 

tools/push-to-trunk/test_scripts.py

@@ -1320,8 +1320,6 @@ Cr-Commit-Position: refs/heads/candidates@{#345}
           cwd=chrome_dir),
       Cmd("git log -1 --format=%B c_hash2", c_hash2_commit_log,
           cwd=chrome_dir),
-      Cmd("git rev-list -n 1 0123456789012345678901234567890123456789",
-          "0123456789012345678901234567890123456789", cwd=chrome_v8_dir),
       Cmd("git log -1 --format=%B 0123456789012345678901234567890123456789",
           self.C_V8_22624_LOG, cwd=chrome_v8_dir),
       Cmd("git diff --name-only c_hash3 c_hash3^", "DEPS", cwd=chrome_dir),