The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7fdc1e4512c4aeeb39415656da42fbc67d2a94e6

commit 7fdc1e4512c4aeeb39415656da42fbc67d2a94e6
Author: hiroshige <hiroshige@chromium.org>
Date: Tue Mar 01 18:20:59 2016

Make ResourceFetcher not to rely on MemoryCache to serve static data

Previously, Resource for static data (data URLs or SubstituteData) are created
and added to MemoryCache in ResourceFetcher::preCacheData(), and then looked
up from MemoryCache.

This CL passes Resource created there as the return value, not via MemoryCache.
This CL also renames preCacheData() to resourceForStaticData().

This CL doesn't change the behavior because resourceForStaticData() still
always adds newly created Resource to MemoryCache.

BUG= 591079 , 382170

Review URL: https://codereview.chromium.org/1747833003

Cr-Commit-Position: refs/heads/master@{#378483}

[modify] https://crrev.com/7fdc1e4512c4aeeb39415656da42fbc67d2a94e6/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
[modify] https://crrev.com/7fdc1e4512c4aeeb39415656da42fbc67d2a94e6/third_party/WebKit/Source/core/fetch/ResourceFetcher.h

The following revision refers to this bug:
  https://chrome-internal.googlesource.com/bling/chromium.git/+/7fdc1e4512c4aeeb39415656da42fbc67d2a94e6

commit 7fdc1e4512c4aeeb39415656da42fbc67d2a94e6
Author: hiroshige <hiroshige@chromium.org>
Date: Tue Mar 01 18:20:59 2016

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/6504eda85055ce372f0a77bd387e0567d8f3ea7f

commit 6504eda85055ce372f0a77bd387e0567d8f3ea7f
Author: hiroshige <hiroshige@chromium.org>
Date: Sat Mar 05 02:17:18 2016

[MemoryCache] Exclude data URLs and SubstituteData from MemoryCache UMAs

BUG= 591079 

Review URL: https://codereview.chromium.org/1771473002

Cr-Commit-Position: refs/heads/master@{#379435}

[modify] https://crrev.com/6504eda85055ce372f0a77bd387e0567d8f3ea7f/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp
[modify] https://crrev.com/6504eda85055ce372f0a77bd387e0567d8f3ea7f/third_party/WebKit/Source/core/fetch/ResourceFetcher.h

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f091cedd80474f519bb925f1dd0e828efe03bd37

commit f091cedd80474f519bb925f1dd0e828efe03bd37
Author: hiroshige <hiroshige@chromium.org>
Date: Wed Mar 09 02:38:51 2016

Do not add Resource for SubstituteData to MemoryCache

BUG= 591079 

Review URL: https://codereview.chromium.org/1748723002

Cr-Commit-Position: refs/heads/master@{#380040}

[modify] https://crrev.com/f091cedd80474f519bb925f1dd0e828efe03bd37/third_party/WebKit/Source/core/fetch/MemoryCache.cpp
[modify] https://crrev.com/f091cedd80474f519bb925f1dd0e828efe03bd37/third_party/WebKit/Source/core/fetch/ResourceFetcher.cpp