Use builder_type when requesting/fetching builds, and add support for full linux builds.

tools/auto_bisect/fetch_build.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """This module contains functions for fetching and extracting archived builds.
 
 The builds may be stored in different places by different types of builders;
 for example, builders on tryserver.chromium.perf stores builds in one place,
 while builders on chromium.linux store builds in another.
 
@@ skipping 33 matching lines @@
     target_arch: Architecture, e.g. "ia32".
     target_platform: Platform name, e.g. "chromium" or "android".
     deps_patch_sha: SHA1 hash which identifies a particular combination of
         custom revisions for dependency repositories.
     extra_src: Path to a script which can be used to modify the bisect script's
         behavior.
 
   Returns:
     A pair of strings (bucket, path), where the archive is expected to be.
   """
+  logging.info('Creating BuildArchive, type "%s", arch "%s", platform "%s".',
+               builder_type, target_arch, target_platform)
   build_archive = BuildArchive.Create(
       builder_type, target_arch=target_arch, target_platform=target_platform,
       extra_src=extra_src)
   bucket = build_archive.BucketName()
   remote_path = build_archive.FilePath(revision, deps_patch_sha=deps_patch_sha)
   return bucket, remote_path
 
 
 class BuildArchive(object):
   """Represents a place where builds of some type are stored.
 
   There are two pieces of information required to locate a file in Google
   Cloud Storage, bucket name and file path. Subclasses of this class contain
   specific logic about which bucket names and paths should be used to fetch
   a build.
   """
 
   @staticmethod
   def Create(builder_type, target_arch='ia32', target_platform='chromium',
-        extra_src=None):
+             extra_src=None):
+    logging.info('Creating BuildArchive, type "%s", arch "%s", platform "%s".',
+                 builder_type, target_arch, target_platform)
     if builder_type == PERF_BUILDER:
       return PerfBuildArchive(target_arch, target_platform)
     if builder_type == FULL_BUILDER:
       return FullBuildArchive(target_arch, target_platform)
     if builder_type == ANDROID_CHROME_PERF_BUILDER:
       try:
         # Load and initialize a module in extra source file and
         # return its module object to access android-chrome specific data.
         loaded_extra_src = bisect_utils.LoadExtraSrc(extra_src)
         return AndroidChromeBuildArchive(
@@ skipping 323 matching lines @@
     print 'Build is not available.'
     return 1
 
   FetchFromCloudStorage(bucket_name, remote_path, args.output_dir)
   print 'Build has been downloaded to and extracted in %s.' % args.output_dir
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(Main(sys.argv))
-