The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/0d9239bcb33250cd613229d19a90af7cfa28d861

commit 0d9239bcb33250cd613229d19a90af7cfa28d861
Author: pilgrim <pilgrim@chromium.org>
Date: Tue Apr 18 03:08:15 2017

Replace ASSERT with DCHECK in modules/fetch.

BUG= 707652 

Review-Url: https://codereview.chromium.org/2804023004
Cr-Commit-Position: refs/heads/master@{#465122}

[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/Body.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/BodyStreamBuffer.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/DataConsumerHandleTestUtil.h
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/FetchManager.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/FetchResponseData.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/Headers.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/Request.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/RequestTest.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/Response.cpp
[modify] https://crrev.com/0d9239bcb33250cd613229d19a90af7cfa28d861/third_party/WebKit/Source/modules/fetch/ResponseTest.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb

commit a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb
Author: pilgrim <pilgrim@chromium.org>
Date: Tue Apr 18 20:47:21 2017

Replace ASSERT_NOT_REACHED with NOTREACHED in modules/fetch

BUG= 707652 

Review-Url: https://codereview.chromium.org/2823203003
Cr-Commit-Position: refs/heads/master@{#465358}

[modify] https://crrev.com/a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb/third_party/WebKit/Source/modules/fetch/DataConsumerHandleTestUtil.h
[modify] https://crrev.com/a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb/third_party/WebKit/Source/modules/fetch/FetchManager.cpp
[modify] https://crrev.com/a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb/third_party/WebKit/Source/modules/fetch/Request.cpp
[modify] https://crrev.com/a5aeed2fbccf03aaaaea0df38fc0ea08ca0f5fbb/third_party/WebKit/Source/modules/fetch/Response.cpp

no instances of ASSERT_NOT_REACHED or RELEASE_ASSERT, so that's all folks.