Roll chromium_revision 5ac2340a23..977e732442 (703358:703537)

Change log: https://chromium.googlesource.com/chromium/src/+log/5ac2340a23..977e732442
Full diff: https://chromium.googlesource.com/chromium/src/+/5ac2340a23..977e732442

Changed dependencies
* src/base: https://chromium.googlesource.com/chromium/src/base/+log/e562576635..05b43c3ab0
* src/build: https://chromium.googlesource.com/chromium/src/build/+log/30e445c75c..ae142b53b6
* src/ios: https://chromium.googlesource.com/chromium/src/ios/+log/d22d06eed7..ecf8848b0a
* src/testing: https://chromium.googlesource.com/chromium/src/testing/+log/aaaa705d50..65fc5a314d
* src/third_party: https://chromium.googlesource.com/chromium/src/third_party/+log/c7e10c69d3..68f42f8961
* src/third_party/depot_tools: https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/4102985e14..3306bbe476
* src/tools: https://chromium.googlesource.com/chromium/src/tools/+log/6c2e4f90a1..7ad0ae5537
DEPS diff: https://chromium.googlesource.com/chromium/src/+/5ac2340a23..977e732442/DEPS

No update to Clang.

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

Change-Id: Ie9d0b3f534dfc7fd2ceef6e327bafc1b7a6416a9
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/156040
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@{#29399}
diff --git a/DEPS b/DEPS
index 0087648..8cdffb7 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': '5ac2340a2395145c1754c5264225e83e72491f85',
+  'chromium_revision': '977e7324421d9e6f9e8d8bb00e6d40ad77ef6c11',
 }
 
 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@e56257663506e96b931af3fa0cc83fbb27c218b6',
+    'https://chromium.googlesource.com/chromium/src/base@05b43c3ab0f8e4ad8f160139eab91007d5aa88b4',
   'src/build':
-    'https://chromium.googlesource.com/chromium/src/build@30e445c75c63f94fc1efb1b0bc47e08771a1b201',
+    'https://chromium.googlesource.com/chromium/src/build@ae142b53b6128474b2c378a878ab36ae265280aa',
   '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@d22d06eed7cc94f85d1cbe36b47e9cfce2bb2e5b',
+    'url': 'https://chromium.googlesource.com/chromium/src/ios@ecf8848b0ac6c18e3bb5e0b5da71f3ed1a4435aa',
     'condition': 'checkout_ios',
   },
   'src/testing':
-    'https://chromium.googlesource.com/chromium/src/testing@aaaa705d50a515929fa7e3e7d949e63e332d75af',
+    'https://chromium.googlesource.com/chromium/src/testing@65fc5a314d3a1aeca6545a222f2f7244dbe62fd8',
   'src/third_party':
-    'https://chromium.googlesource.com/chromium/src/third_party@c7e10c69d3397acdc002d4eea95248d9eb5f29e4',
+    'https://chromium.googlesource.com/chromium/src/third_party@68f42f89610c33525df011d0dd9eeb243e736708',
 
   'src/buildtools/linux64': {
     'packages': [
@@ -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@4102985e142727b11c90f9a1eb77fe8b81963f50',
+    'https://chromium.googlesource.com/chromium/tools/depot_tools.git@3306bbe476fd4b069aad347afdd5b4e3564234aa',
   '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@6c2e4f90a112addff18d15cd05d8a600473859b5',
+    'https://chromium.googlesource.com/chromium/src/tools@7ad0ae553777754f41c6daf81d3ee12fc84fd389',
   'src/tools/swarming_client':
     'https://chromium.googlesource.com/infra/luci/client-py.git@885b3febcc170a60f25795304e60927b77d1e92d',