If you run blink_platform_unittests then the BlobDataHandleTests will fail. If you run them individually they pass.

[ RUN      ] BlobDataHandleTest.CreateFromSmallBytes
../../third_party/WebKit/Source/platform/blob/BlobDataTest.cpp:249: Failure
      Expected: 2u
      Which is: 2
To be equal to: mock_blob_registry_.registrations.size()
      Which is: 0
[  FAILED  ] BlobDataHandleTest.CreateFromSmallBytes (1 ms)
[1027/2238] BlobDataHandleTest.CreateFromSmallBytes (1 ms)
[ RUN      ] BlobDataHandleTest.CreateFromLargeBytes
../../third_party/WebKit/Source/platform/blob/BlobDataTest.cpp:249: Failure
      Expected: 2u
      Which is: 2
To be equal to: mock_blob_registry_.registrations.size()
      Which is: 0
[  FAILED  ] BlobDataHandleTest.CreateFromLargeBytes (3 ms)
[1028/2238] BlobDataHandleTest.CreateFromLargeBytes (3 ms)
[ RUN      ] BlobDataHandleTest.CreateFromMergedBytes
../../third_party/WebKit/Source/platform/blob/BlobDataTest.cpp:249: Failure
      Expected: 2u
      Which is: 2
To be equal to: mock_blob_registry_.registrations.size()
      Which is: 0
[  FAILED  ] BlobDataHandleTest.CreateFromMergedBytes (1 ms)

etc..