Roll chromium_revision 8a7888ec8b..8524e2aded (647072:647205)

Change log: https://chromium.googlesource.com/chromium/src/+log/8a7888ec8b..8524e2aded
Full diff: https://chromium.googlesource.com/chromium/src/+/8a7888ec8b..8524e2aded

Changed dependencies
* src/base: https://chromium.googlesource.com/chromium/src/base/+log/0b50d69249..4d7d3409f7
* src/build: https://chromium.googlesource.com/chromium/src/build/+log/0797ede5ef..c2f2e5ab0f
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/e9d51ce300..b5be7e7906
* src/testing: https://chromium.googlesource.com/chromium/src/testing/+log/a206cb6292..946f832584
* src/third_party: https://chromium.googlesource.com/chromium/src/third_party/+log/c51b0e9f82..8ae85677bd
* src/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/422c432dd2..865445eb8a
* src/tools: https://chromium.googlesource.com/chromium/src/tools/+log/9247105d80..f05d4a5db9
DEPS diff: https://chromium.googlesource.com/chromium/src/+/8a7888ec8b..8524e2aded/DEPS

No update to Clang.

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

Change-Id: Iac84fa620a55ef9f8f352144783cc294d2055f78
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/131100
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@{#27438}
diff --git a/DEPS b/DEPS
index f9fa734..89f7d59 100644
--- a/DEPS
+++ b/DEPS
@@ -7,7 +7,7 @@
   'checkout_configuration': 'default',
   'checkout_instrumented_libraries': 'checkout_linux and checkout_configuration == "default"',
   'webrtc_git': 'https://webrtc.googlesource.com',
-  'chromium_revision': '8a7888ec8b080a8f78dbccd1fe10c333088d5c72',
+  'chromium_revision': '8524e2adedb126d2e01c79cc047dc49002d44a93',
   'boringssl_git': 'https://boringssl.googlesource.com',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client
@@ -86,9 +86,9 @@
   # TODO(kjellander): Move this to be Android-only once the libevent dependency
   # in base/third_party/libevent is solved.
   'src/base':
-    Var('chromium_git') + '/chromium/src/base' + '@' + '0b50d692499e4cd3e3d9d7da9dbc9c02ad11ed5b',
+    Var('chromium_git') + '/chromium/src/base' + '@' + '4d7d3409f754d9832f28464bafe9f54f58444ee8',
   'src/build':
-    Var('chromium_git') + '/chromium/src/build' + '@' + '0797ede5efec6bc8f67f7b83659489bc113817ce',
+    Var('chromium_git') + '/chromium/src/build' + '@' + 'c2f2e5ab0f55d66e60294960cd1ffed7cd3ecebd',
   'src/buildtools':
     Var('chromium_git') + '/chromium/src/buildtools' + '@' + '459baaf66bee809f6eb288e0215cf524f4d2429a',
   # Gradle 4.3-rc4. Used for testing Android Studio project generation for WebRTC.
@@ -98,13 +98,13 @@
     'condition': 'checkout_android',
   },
   'src/ios': {
-    'url': Var('chromium_git') + '/chromium/src/ios' + '@' + 'e9d51ce300c07aea4dffb6dc5629497e5443f46d',
+    'url': Var('chromium_git') + '/chromium/src/ios' + '@' + 'b5be7e7906c5dafdffd53d307da7015d98d3af3d',
     'condition': 'checkout_ios',
   },
   'src/testing':
-    Var('chromium_git') + '/chromium/src/testing' + '@' + 'a206cb62928b59766831c82ff0177f4e5806a708',
+    Var('chromium_git') + '/chromium/src/testing' + '@' + '946f8325846a29a7782c4ba6cbc27879e2f5feec',
   'src/third_party':
-    Var('chromium_git') + '/chromium/src/third_party' + '@' + 'c51b0e9f822efe4c9767ba84815aa6ac7ea10248',
+    Var('chromium_git') + '/chromium/src/third_party' + '@' + '8ae85677bd676df6fbc9b4a7053e19f7d26baba0',
 
   'src/buildtools/linux64': {
     'packages': [
@@ -199,7 +199,7 @@
   'src/third_party/colorama/src':
     Var('chromium_git') + '/external/colorama.git' + '@' + '799604a1041e9b3bc5d2789ecbd7e8db2e18e6b8',
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '422c432dd25db33631432920a628934044d27968',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '865445eb8a457bd1acf643d427e722f640c31f6f',
   'src/third_party/errorprone/lib': {
       'url': Var('chromium_git') + '/chromium/third_party/errorprone.git' + '@' + '980d49e839aa4984015efed34b0134d4b2c9b6d7',
       'condition': 'checkout_android',
@@ -312,7 +312,7 @@
   'src/third_party/yasm/source/patched-yasm':
     Var('chromium_git') + '/chromium/deps/yasm/patched-yasm.git' + '@' + '720b70524a4424b15fc57e82263568c8ba0496ad',
   'src/tools':
-    Var('chromium_git') + '/chromium/src/tools' + '@' + '9247105d801393ccdf0f4e0cdaafb3b5581fc725',
+    Var('chromium_git') + '/chromium/src/tools' + '@' + 'f05d4a5db94be3412b56bd67043f963a6d855a26',
   'src/tools/swarming_client':
     Var('chromium_git') + '/infra/luci/client-py.git' + '@' +  Var('swarming_revision'),