webkit_tests failing on chromium.webkit/WebKit Android (Nexus4)

Builders failed on: 
- WebKit Android (Nexus4): 
  https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Android%20%28Nexus4%29


From log:
https://luci-logdog.appspot.com/v/?s=chromium%2Fbb%2Fchromium.webkit%2FWebKit_Android__Nexus4_%2F64301%2F%2B%2Frecipes%2Fsteps%2Fwebkit_tests%2F0%2Fstdout

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08:43:12.220 32437 worker/2 fast/block/float/centered-float-avoidance-complexity.html output stderr lines:
08:43:12.220 32437   [11712:11712:0428/154310.323728:592784835:ERROR:shell_android.cc(72)] Not implemented reached in void content::Shell::PlatformSetTitle(const string16&): Floats and BFCs with horizontal margins
08:43:12.257 32437 "/b/c/b/WebKit_Android__Nexus4_/src/out/Release/image_diff --diff /tmp/tmpLG0DGd/actual.png /tmp/tmpLG0DGd/expected.png /tmp/tmpLG0DGd/diff.png" took 0.04s
08:43:12.258 30572 [454/1057] fast/block/float/centered-float-avoidance-complexity.html failed unexpectedly (image diff)
08:43:12.257 32437 worker/2 fast/block/float/centered-float-avoidance-complexity.html failed:
08:43:12.257 32437 worker/2  image diff

...

fast/block/float/centered-float-avoidance-complexity.html [ Failure Failure Crash Failure ]
fast/css3-text/css3-text-decoration/text-decoration-style-inherit.html [ Failure ]
fast/events/reveal-link-when-focused.html [ Failure Crash Failure Crash ]
fast/overflow/position-fixed-transform-clipping.html [ Failure ]
fast/table/border-collapsing/004.html [ Failure Crash Crash Crash ]
tables/mozilla/bugs/ bug2479 -3.html [ Failure Crash Failure Crash ]
tables/mozilla/bugs/ bug2479 -4.html [ Failure Failure Crash Failure ]
tables/mozilla/core/bloomberg.html [ Failure ]
tables/mozilla_expected_failures/bugs/ bug1055 -2.html [ Failure ]
tables/mozilla_expected_failures/bugs/ bug2479 -5.html [ Failure ]
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It seems this method should not be called on Android:

//content/shell/browser/shell_android.cc:
void Shell::PlatformSetTitle(const base::string16& title) {
  NOTIMPLEMENTED() << ": " << title;
}