Chrome Version       : latest master
OS : Android

What steps will reproduce the problem?
(1) out/Debug/bin/run_webkit_unit_tests -f All\/VisualViewportTest\.TestVisibleContentRect\/0


What is the expected result?
test pass

What happens instead?
/m/S/u/src ❯❯❯ out/Debug/bin/run_webkit_unit_tests --num_retries=0 -f All\/VisualViewportTest\.TestVisibleContentRect\/0                                                                                           ⏎ remotes/origin/lkgr~7 ✭

W   46.924s TimeoutThread-1-for-individual_device_set_up(0a8fb853)  unzip not available: (device: 0a8fb853) chromium_commands currently requires a userdebug build.
C   66.163s Main  ********************************************************************************
C   66.164s Main  Detailed Logs
C   66.164s Main  ********************************************************************************
C   66.164s Main  [CRASH] All/VisualViewportTest.TestVisibleContentRect/0:
C   66.164s Main  [ RUN      ] All/VisualViewportTest.TestVisibleContentRect/0
C   66.164s Main  [INFO:SkFontMgr_android.cpp(163)] Requested font file /system/fonts/NanumGothic.ttf does not exist or cannot be opened.
C   66.164s Main  
C   66.164s Main  [INFO:SkFontMgr_android.cpp(163)] Requested font file /system/fonts/DroidSansFallback.ttf does not exist or cannot be opened.
C   66.164s Main  
C   66.164s Main  [FATAL:webthemeengine_impl_android.cc(47)] Check failed: false. 
C   66.164s Main  #00 0xaf158dab /data/app/org.chromium.native_test-2/lib/arm/libbase.cr.so+0x00098dab
C   66.164s Main  #01 0x9ca62b17 /data/app/org.chromium.native_test-2/lib/arm/libcontent.cr.so+0x00510b17
C   66.164s Main  #02 0x9ca62c8f /data/app/org.chromium.native_test-2/lib/arm/libcontent.cr.so+0x00510c8f
C   66.164s Main  #03 0xa0866ccf /data/app/org.chromium.native_test-2/lib/arm/libblink_platform.cr.so+0x001f5ccf
C   66.164s Main  #04 0x9f27bf5d /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x00a76f5d
C   66.164s Main  #05 0x9f1c1797 /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x009bc797
C   66.165s Main  #06 0xa07d3245 /data/app/org.chromium.native_test-2/lib/arm/libblink_platform.cr.so+0x00162245
C   66.165s Main  #07 0xa07d4811 /data/app/org.chromium.native_test-2/lib/arm/libblink_platform.cr.so+0x00163811
C   66.165s Main  #08 0x9ef2d1e9 /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x007281e9
C   66.165s Main  #09 0x9ef37f43 /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x00732f43
C   66.165s Main  #10 0x9ef3d6d9 /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x007386d9
C   66.165s Main  #11 0x9f2533f1 /data/app/org.chromium.native_test-2/lib/arm/libblink_core.cr.so+0x00a4e3f1
C   66.165s Main  #12 0x9dabe1cb /data/app/org.chromium.native_test-2/lib/arm/libblink_web.cr.so+0x001061cb
C   66.165s Main  #13 0x9dabe4b1 /data/app/org.chromium.native_test-2/lib/arm/libblink_web.cr.so+0x001064b1
C   66.165s Main  #14 0x9dabe629 /data/app/org.chromium.native_test-2/lib/arm/libblink_web.cr.so+0x00106629
C   66.165s Main  #15 0x9b4b3919 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x002dc919
C   66.165s Main  #16 0x9ba470e9 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x008700e9
C   66.165s Main  #17 0x9ba47227 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x00870227
C   66.165s Main  #18 0x9ba472b3 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x008702b3
C   66.165s Main  #19 0x9ba49d57 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x00872d57
C   66.165s Main  #20 0x9ba43383 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x0086c383
C   66.165s Main  #21 0x9b9bf627 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x007e8627
C   66.165s Main  #22 0x9b46a943 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x00293943
C   66.165s Main  #23 0x9b9cc4f1 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x007f54f1
C   66.166s Main  #24 0x9b9cc867 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x007f5867
C   66.166s Main  #25 0x9b3b63b3 /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x001df3b3
C   66.166s Main  #26 0x9b9b433f /data/app/org.chromium.native_test-2/lib/arm/lib_webkit_unit_tests__library.cr.so+0x007dd33f
C   66.166s Main  #27 0xa3949a91 /data/dalvik-cache/arm/data@app@org.chromium.native_test-2@base.apk@classes.dex+0x006a2a91
C   66.166s Main  
C   66.166s Main  [ERROR:test_suite.cc(270)] Currently running: All/VisualViewportTest.TestVisibleContentRect/0
C   66.166s Main  ********************************************************************************
C   66.166s Main  Summary
C   66.166s Main  ********************************************************************************
C   66.166s Main  [==========] 1 test ran.
C   66.166s Main  [  PASSED  ] 0 tests.
C   66.166s Main  [  FAILED  ] 1 test, listed below:
C   66.166s Main  [  FAILED  ] All/VisualViewportTest.TestVisibleContentRect/0 (CRASHED)
C   66.166s Main  
C   66.166s Main  1 FAILED TEST
C   66.166s Main  ********************************************************************************


Please provide any additional information below. Attach a screenshot if
possible.
I can repro this on Nexus 7.
It fails at
https://cs.chromium.org/chromium/src/content/child/webthemeengine_impl_android.cc?q=content/child/webthemeengine_impl_android.cc&sq=package:chromium&l=45
// Android doesn't draw scrollbars.
the test has this line initializeWithDesktopSettings();