Secondary migration from google3 into AOSP.

The 2nd revival of AOSP acloud is upon us!

The cl revision the acloud g3 code was pulled from is 195930083.

Things I did:
- Added AOSP copyright for new files and updated g3 imports to be relative.
- Merged in changes into existing files (easier to see changes here and
  for future cls).
- Scrubbed default.config of project and build info.
- Merge acloud.py (from g3) into acloud_main.py (entry point for AOSP
  acloud).
- Regenerated internal_config_pb2.py and user_config_pb2.py.
- Removed add_mock from gcomputer_client_test and added TODO in file
  where to replace it and updated parameterized to import from
  absl.testing.
- Updated references to gce_x86 to aosp_cf_x86_phone and updated branch
  references to 'aosp-master'.

Thing to note:
- New files fail pylint (in order to make it easy to check history on new files,
  formatting will be done using yapf in another cl).
- pip install acloud.zip seg faults so investigation and fix for that
  will happen in another cl.
- User needs to 'pip install absl-py' for parameterized lib in unittests.

Bug: 79684654
Test: ./run_tests.sh
Change-Id: I060641227d7c9162a45557e732686f22b83895e9
diff --git a/internal/constants.py b/internal/constants.py
index ff523f3..2ef3cdb 100755
--- a/internal/constants.py
+++ b/internal/constants.py
@@ -17,11 +17,10 @@
 """This module holds constants used by the driver."""
 BRANCH_PREFIX = "git_"
 BUILD_TARGET_MAPPING = {
-    "phone": "gce_x86_phone-userdebug",
-    "tablet": "gce_x86_tablet-userdebug",
-    "tablet_mobile": "gce_x86_tablet_mobile-userdebug",
-    "aosp_phone": "aosp_gce_x86_phone-userdebug",
-    "aosp_tablet": "aosp_gce_x86_tablet-userdebug",
+    # TODO: Add aosp goldfish targets and internal cf targets to vendor code
+    # base.
+    "aosp_phone": "aosp_cf_x86_phone-userdebug",
+    "aosp_tablet": "aosp_cf_x86_tablet-userdebug",
 }
 SPEC_NAMES = {"nexus5", "nexus6", "nexus7_2012", "nexus7_2013", "nexus9",
               "nexus10"}