Roll chromium_revision a78cc9b4cc..b2d00427a6 (703818:703937)

Change log: https://chromium.googlesource.com/chromium/src/+log/a78cc9b4cc..b2d00427a6
Full diff: https://chromium.googlesource.com/chromium/src/+/a78cc9b4cc..b2d00427a6

Changed dependencies
* src/base: https://chromium.googlesource.com/chromium/src/base/+log/d7867bbd49..1016d8c99d
* src/build: https://chromium.googlesource.com/chromium/src/build/+log/951fd2bf8b..f2c9515f78
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/1cf4ba6d0c..75f1c3d2e4
* src/testing: https://chromium.googlesource.com/chromium/src/testing/+log/5b2f961032..be187517d8
* src/third_party: https://chromium.googlesource.com/chromium/src/third_party/+log/182a8fe514..f622bffd60
* src/third_party/catapult: https://chromium.googlesource.com/catapult.git/+log/f7b20a05de..fa588881c5
* src/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/1458d572f9..b7a7f1c05e
* src/tools: https://chromium.googlesource.com/chromium/src/tools/+log/a9e091dd52..a696ee6f65
DEPS diff: https://chromium.googlesource.com/chromium/src/+/a78cc9b4cc..b2d00427a6/DEPS

No update to Clang.

TBR=chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com,
BUG=None

Change-Id: Ibdda19fa40b663d8cd7a2a56e84ea49b9b9a3de2
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/156068
Reviewed-by: Autoroller <chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com>
Commit-Queue: Autoroller <chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#29411}
diff --git a/DEPS b/DEPS
index dd1d10b..f6d69a7 100644
--- a/DEPS
+++ b/DEPS
@@ -5,16 +5,16 @@
   # chromium waterfalls. More info at: crbug.com/570091.
   'checkout_configuration': 'default',
   'checkout_instrumented_libraries': 'checkout_linux and checkout_configuration == "default"',
-  'chromium_revision': 'a78cc9b4cc776d4a493237164dbf15a3354a7fc7',
+  'chromium_revision': 'b2d00427a68634cf1aa163ba72dca692b560122c',
 }
 
 deps = {
   # TODO(kjellander): Move this to be Android-only once the libevent dependency
   # in base/third_party/libevent is solved.
   'src/base':
-    'https://chromium.googlesource.com/chromium/src/base@d7867bbd495ca86449d6a1503b880bcafd9454a1',
+    'https://chromium.googlesource.com/chromium/src/base@1016d8c99dad6da2281218102d8d319cdbb8bbd5',
   'src/build':
-    'https://chromium.googlesource.com/chromium/src/build@951fd2bf8bcaaf322b49e890689ce311f5e33aec',
+    'https://chromium.googlesource.com/chromium/src/build@f2c9515f78428da9f2a014cf91725235dbdd1cfe',
   'src/buildtools':
     'https://chromium.googlesource.com/chromium/src/buildtools@cf454b247c611167388742c7a31ef138a6031172',
   # Gradle 4.3-rc4. Used for testing Android Studio project generation for WebRTC.
@@ -23,13 +23,13 @@
     'condition': 'checkout_android',
   },
   'src/ios': {
-    'url': 'https://chromium.googlesource.com/chromium/src/ios@1cf4ba6d0cb07646a28fe6b75526ce2d7ba3eaa3',
+    'url': 'https://chromium.googlesource.com/chromium/src/ios@75f1c3d2e4435eefdbd712aa9fa5ddfcfb0b215c',
     'condition': 'checkout_ios',
   },
   'src/testing':
-    'https://chromium.googlesource.com/chromium/src/testing@5b2f961032ad9d9ec99e3ac4cbe39544b8f6c82b',
+    'https://chromium.googlesource.com/chromium/src/testing@be187517d8d2e1b58cb1bc3fe1fca2e0f91b0fee',
   'src/third_party':
-    'https://chromium.googlesource.com/chromium/src/third_party@182a8fe51487a27d534fc898da76ab73573d4549',
+    'https://chromium.googlesource.com/chromium/src/third_party@f622bffd600c818a73e5a093a9de3dfb87147843',
 
   'src/buildtools/linux64': {
     'packages': [
@@ -111,7 +111,7 @@
   'src/third_party/boringssl/src':
     'https://boringssl.googlesource.com/boringssl.git@6a2609dae219e4300dfc62b2a37f10b5c845547b',
   'src/third_party/catapult':
-    'https://chromium.googlesource.com/catapult.git@f7b20a05decf39ce51b6728d773a023e2bc5759b',
+    'https://chromium.googlesource.com/catapult.git@fa588881c5b5986f6bd264277fcedf990f3c4c09',
   'src/third_party/ced/src': {
     'url': 'https://chromium.googlesource.com/external/github.com/google/compact_enc_det.git@ba412eaaacd3186085babcd901679a48863c7dd5',
     'condition': 'checkout_android',
@@ -119,7 +119,7 @@
   'src/third_party/colorama/src':
     'https://chromium.googlesource.com/external/colorama.git@799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
   'src/third_party/depot_tools':
-    'https://chromium.googlesource.com/chromium/tools/depot_tools.git@1458d572f95002172a9335174cd48a3a67bcd079',
+    'https://chromium.googlesource.com/chromium/tools/depot_tools.git@b7a7f1c05edbe213fcd92f08b203c796d46d8912',
   'src/third_party/errorprone/lib': {
       'url': 'https://chromium.googlesource.com/chromium/third_party/errorprone.git@980d49e839aa4984015efed34b0134d4b2c9b6d7',
       'condition': 'checkout_android',
@@ -231,7 +231,7 @@
   'src/third_party/yasm/source/patched-yasm':
     'https://chromium.googlesource.com/chromium/deps/yasm/patched-yasm.git@720b70524a4424b15fc57e82263568c8ba0496ad',
   'src/tools':
-    'https://chromium.googlesource.com/chromium/src/tools@a9e091dd52473dcfe5f4ac4a3b558daef5257382',
+    'https://chromium.googlesource.com/chromium/src/tools@a696ee6f6593e5d194066fa44914847c0c5629ad',
   'src/tools/swarming_client':
     'https://chromium.googlesource.com/infra/luci/client-py.git@885b3febcc170a60f25795304e60927b77d1e92d',