Roll chromium_revision da6245e7c4..21e78fbe27 (488751:500243) + fix DEPS

Manually change DEPS URL for src/tools/swarming_client to match Chromium
Similar to https://chromium.googlesource.com/external/webrtc/+/4ccd9c1493979bb1b4721ffdfdc59568ce5a40db%5E%21/#F0

Also add downloading of third_party/bazel/desugar since it's not required
by the build toolchain on Android.

Change log: https://chromium.googlesource.com/chromium/src/+log/da6245e7c4..21e78fbe27
Full diff: https://chromium.googlesource.com/chromium/src/+/da6245e7c4..21e78fbe27

Changed dependencies:
* src/base: https://chromium.googlesource.com/chromium/src/base/+log/8c06e7a9f6..bdaf4d9893
* src/build: https://chromium.googlesource.com/chromium/src/build/+log/5a3f439e92..92ccaf1432
* src/buildtools: https://chromium.googlesource.com/chromium/buildtools.git/+log/5ad14542a6..cbc33b9c0a
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/e5a58b0b43..436ef979f7
* src/testing: https://chromium.googlesource.com/chromium/src/testing/+log/ebf1c4622e..dcfc1809e9
* src/third_party: https://chromium.googlesource.com/chromium/src/third_party/+log/d58cf433a5..36421e57a8
* src/third_party/android_tools: https://chromium.googlesource.com/android_tools.git/+log/e9d4018e14..aadb2fed04
* src/third_party/catapult: https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/9629af7533..c9667ecd29
* src/third_party/googletest/src: https://chromium.googlesource.com/external/github.com/google/googletest.git/+log/42bc671f47..7f8fefabed
* src/third_party/icu: https://chromium.googlesource.com/chromium/deps/icu.git/+log/1fec0c83e9..08cb956852
* src/third_party/robolectric/robolectric: https://chromium.googlesource.com/external/robolectric.git/+log/2a0b6ba221..b02c65cc6d
* src/third_party/yasm/source/patched-yasm: https://chromium.googlesource.com/chromium/deps/yasm/patched-yasm.git/+log/7da28c6c7c..b98114e18d
* src/tools: https://chromium.googlesource.com/chromium/src/tools/+log/f79809d034..5d14bcccf1
* src/tools/swarming_client: https://chromium.googlesource.com/infra/luci/client-py.git/+log/a56c2b39ca..72b6a2dc60
DEPS diff: https://chromium.googlesource.com/chromium/src/+/da6245e7c4..21e78fbe27/DEPS

Clang version changed 308728:310694
Details: https://chromium.googlesource.com/chromium/src/+/da6245e7c4..21e78fbe27/tools/clang/scripts/update.py

TBR=fbarchard@google.com
BUG=None
NOTRY=True

Change-Id: Ic0fdefb7def1407e69e74d2c87e4316c323b383b
Reviewed-on: https://chromium-review.googlesource.com/654639
Commit-Queue: Henrik Kjellander <kjellander@chromium.org>
Reviewed-by: Henrik Kjellander <kjellander@chromium.org>

DEPS

 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': 'da6245e7c4b489a4dc73be76fcb54483add1eb2b',
-  'swarming_revision': 'a56c2b39ca23bdf41458421a7f825ddbf3f43f28',
+  'chromium_revision': '21e78fbe27c34227e4c4fb7c627907506639b6f5',
+  'swarming_revision': '72b6a2dc604673b84794937cb3da3fd755ccc4cd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling lss
   # and whatever else without interference from each other.
@@ -9,34 +9,34 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling catapult
   # and whatever else without interference from each other.
-  'catapult_revision': '9629af7533357c245a90fb7130fbfba53a162284',
+  'catapult_revision': 'c9667ecd29cbb003b7fbdcd6f2da0f02bf0e7257',
 }
 
 deps = {
   'src/build':
-    Var('chromium_git') + '/chromium/src/build' + '@' + '5a3f439e92d3a55858c4eeda57917664657f45fb',
+    Var('chromium_git') + '/chromium/src/build' + '@' + '92ccaf1432c198e262a7f5d6b801b77879a4a46c',
   'src/buildtools':
-    Var('chromium_git') + '/chromium/buildtools.git' + '@' + '5ad14542a6a74dd914f067b948c5d3e8d170396b',
+    Var('chromium_git') + '/chromium/buildtools.git' + '@' + 'cbc33b9c0a9d1bb913895a4319a742c504a2d541',
   'src/testing':
-    Var('chromium_git') + '/chromium/src/testing' + '@' + 'ebf1c4622eba176624b5084a727b8fe308d2896b',
+    Var('chromium_git') + '/chromium/src/testing' + '@' + 'dcfc1809e921b1d687e5bf4efe5b9f586b32728f',
   'src/third_party':
-    Var('chromium_git') + '/chromium/src/third_party' + '@' + 'd58cf433a5327d71ff38bfeab37bd42932f9740b',
+    Var('chromium_git') + '/chromium/src/third_party' + '@' + '36421e57a859c83a403e7d5b5d4c0d33b033ea39',
   'src/third_party/catapult':
    Var('chromium_git') + '/external/github.com/catapult-project/catapult.git' + '@' + Var('catapult_revision'),
   'src/third_party/colorama/src':
     Var('chromium_git') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
   'src/third_party/googletest/src':
-    Var('chromium_git') + '/external/github.com/google/googletest.git' + '@' + '42bc671f47b122fad36db5eccbc06868afdf7862',
+    Var('chromium_git') + '/external/github.com/google/googletest.git' + '@' + '7f8fefabedf2965980585be8c2bff97458f28e0b',
   'src/third_party/libjpeg_turbo':
     Var('chromium_git') + '/chromium/deps/libjpeg_turbo.git' + '@' + 'a1750dbc79a8792dde3d3f7d7d8ac28ba01ac9dd',
   'src/third_party/yasm/source/patched-yasm':
-    Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + '7da28c6c7c6a1387217352ce02b31754deb54d2a',
+    Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + 'b98114e18d8b9b84586b10d24353ab8616d4c5fc',
   'src/tools':
-    Var('chromium_git') + '/chromium/src/tools' + '@' + 'f79809d0346e8191983826dee15df3f2c71b1343',
+    Var('chromium_git') + '/chromium/src/tools' + '@' + '5d14bcccf197878a8995e1966cadd3d1d33c6eb3',
   'src/tools/gyp':
     Var('chromium_git') + '/external/gyp.git' + '@' + 'd61a9397e668fa9843c4aa7da9e79460fe590bfb',
    'src/tools/swarming_client':
-     Var('chromium_git') + '/external/swarming.client.git' + '@' +  Var('swarming_revision'),
+     Var('chromium_git') + '/infra/luci/client-py.git' + '@' +  Var('swarming_revision'),
 
   # libyuv-only dependencies (not present in Chromium).
   'src/third_party/gflags':
@@ -50,13 +50,13 @@ deps = {
 deps_os = {
   'android': {
     'src/base':
-      Var('chromium_git') + '/chromium/src/base' + '@' + '8c06e7a9f6d085c70d25f29a1261c4b01bba7470',
+      Var('chromium_git') + '/chromium/src/base' + '@' + 'bdaf4d98935e2d0b4934fd3708157a552c9de672',
     'src/third_party/android_tools':
-      Var('chromium_git') + '/android_tools.git' + '@' + 'e9d4018e149d50172ed462a7c21137aa915940ec',
+      Var('chromium_git') + '/android_tools.git' + '@' + 'aadb2fed04af8606545b0afe4e3060bc1a15fad7',
     'src/third_party/ced/src':
       Var('chromium_git') + '/external/github.com/google/compact_enc_det.git' + '@' + '910cca22d881b02cbc8950fa02ccbcdcfb782456',
     'src/third_party/icu':
-      Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '1fec0c83e9ad7f5a075ae0b50af9a3889f54be0e',
+      Var('chromium_git') + '/chromium/deps/icu.git' + '@' + '08cb956852a5ccdba7f9c941728bb833529ba3c6',
     'src/third_party/jsr-305/src':
       Var('chromium_git') + '/external/jsr-305.git' + '@' + '642c508235471f7220af6d5df2d3210e3bfc0919',
     'src/third_party/junit/src':
@@ -68,13 +68,13 @@ deps_os = {
     'src/third_party/requests/src':
       Var('chromium_git') + '/external/github.com/kennethreitz/requests.git' + '@' + 'f172b30356d821d180fa4ecfa3e71c7274a32de4',
     'src/third_party/robolectric/robolectric':
-      Var('chromium_git') + '/external/robolectric.git' + '@' + '2a0b6ba221c14f3371813a676ce06143353e448d',
+      Var('chromium_git') + '/external/robolectric.git' + '@' + 'b02c65cc6d7465f58f0de48a39914aa905692afa',
     'src/third_party/ub-uiautomator/lib':
       Var('chromium_git') + '/chromium/third_party/ub-uiautomator.git' + '@' + '00270549ce3161ae72ceb24712618ea28b4f9434',
   },
   'ios': {
     'src/ios':
-      Var('chromium_git') + '/chromium/src/ios' + '@' + 'e5a58b0b437af90c301a3bbbd25f8c620546168b',
+      Var('chromium_git') + '/chromium/src/ios' + '@' + '436ef979f71a3603ca1c647fecc39e8d09438f9e',
   },
   'unix': {
     'src/third_party/lss':
@@ -231,6 +231,16 @@ hooks = [
                '-l', 'third_party/ow2_asm'
     ],
   },
+  {
+    'name': 'desugar',
+    'pattern': '.',
+    'action': ['python',
+               'src/build/android/update_deps/update_third_party_deps.py',
+               'download',
+               '-b', 'chromium-android-tools/bazel/desugar',
+               '-l', 'third_party/bazel/desugar'
+    ],
+  },
   {
     'name': 'icu4j',
     'pattern': '.',