Roll buildtools in DEPS 565d04e874..f7310ee617

Roll buildtools in DEPS 565d04e874..f7310ee617

  In order to roll GN a6029a4c14..4c8f3e38da (r341627:r348227) and pick up
  the following changes:

  a88eb18 Throw errors for nested targets in GN.
  d9838e1 Make gyp_flag_compare.py work on Windows
  63a4d15 Fix sbox_validation_tests & Make isolate_driver.py include the executable itself
  789ee89 gn: fix documentation typo
  3473904 Update reference doc page for GN.
  d2cb755 GN: Fix bootstrap script on Mac.
  7c8964f Revert of Fix sbox_validation_tests & Make isolate_driver.py include the executable itself (patchset #3 id:90001 of https://codereview.chromium.org/1245873002/ )
  c6649f2 Fix sbox_validation_tests & Make isolate_driver.py include the executable itself
  5591967 tools/gn: Remove fallback to direct_dependent_configs.
  fe59edc [GN] move gn doc to proper place
  ba7a73d Annotate GN executables and shared_libraries with sanitizer deps.
  6aeaa45 GN get_label_info support toolchains for target_out_dir.
  7693bf2 Sync GN unit tests with GYP, add checking script.
  28fccd5 Revert of Sync GN unit tests with GYP, add checking script. (patchset #3 id:40001 of https://codereview.chromium.org/1289423004/ )
  b2f7271 Sync GN unit tests with GYP, add checking script.
  7a694fe Fix various stray bugs in the GN auto-roller, and repair the DEPS file.
  83dc161 Remove remaining legacy SplitString calls.
  f51a763 tools/gn: Remove includes of basictypes.h.
  b35ddf5 clang/win: Try to fix 64-bit build after https://codereview.chromium.org/1261953003.
  e330570 clang/win: Try to fix build after https://codereview.chromium.org/1261953003.
  c9b8dab Fix gn bootstrap.
  693c605 Fix some crashes in GN.
  2a08763 Pull ICU, rename component build GN variables.
  d79f1ac Reference written files relatively when possible.

R=brettw@chromium.org
CQ_EXTRA_TRYBOTS=tryserver.chromium.mac:mac_chromium_gn_rel,mac_chromium_gn_dbg;tryserver.chromium.win:win8_chromium_gn_dbg,win_chromium_gn_x64_rel

Review URL: https://codereview.chromium.org/1327363003

Cr-Commit-Position: refs/heads/master@{#348787}