Made ElementStyleResources store const CSSSVGDocumentValues

Made ElementStyleResources store const CSSSVGDocumentValues

Made ElementStyleResources store const CSSSVGDocumentValues in
m_pendingSVGDocuments, meaning that addPendingSVGDocument() can take a
const CSSSVGDocumentValue* instead of a regular pointer. This was
required so that FilterOperationResolver::createFilterOperations() can
use the non-const call to CSSValueList::item().

This also involved making CSSSVGDocumentValue::load() a const method and
marking CSSSVGDocumentValue's cache-related members as mutable.

BUG=526586
Committed: https://crrev.com/a04d68383de9cc5e71706c4f227b4c67ca4b433d
Cr-Commit-Position: refs/heads/master@{#397985}

[sashab, 2016-06-03 06:02:33]

sashab@chromium.org changed reviewers:
+ timloh@chromium.org

[Timothy Loh, 2016-06-03 06:12:13]

seems fine, lgtm

[sashab, 2016-06-06 05:42:03]

The CQ bit was checked by sashab@chromium.org

[sashab, 2016-06-06 05:42:03]

The patchset sent to the CQ was uploaded after l-g-t-m from timloh@chromium.org
Link to the patchset: https://codereview.chromium.org/2038443003/#ps20001
(title: "Rebase")

[commit-bot: I haz the power, 2016-06-06 05:42:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2038443003/20001

[commit-bot: I haz the power, 2016-06-06 06:32:42]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-06-06 06:34:04]

Description was changed from

==========
Made ElementStyleResources store const CSSSVGDocumentValues

Made ElementStyleResources store const CSSSVGDocumentValues in
m_pendingSVGDocuments, meaning that addPendingSVGDocument() can take a
const CSSSVGDocumentValue* instead of a regular pointer. This was
required so that FilterOperationResolver::createFilterOperations() can
use the non-const call to CSSValueList::item().

This also involved making CSSSVGDocumentValue::load() a const method and
marking CSSSVGDocumentValue's cache-related members as mutable.

BUG=526586
==========

to

==========
Made ElementStyleResources store const CSSSVGDocumentValues

Made ElementStyleResources store const CSSSVGDocumentValues in
m_pendingSVGDocuments, meaning that addPendingSVGDocument() can take a
const CSSSVGDocumentValue* instead of a regular pointer. This was
required so that FilterOperationResolver::createFilterOperations() can
use the non-const call to CSSValueList::item().

This also involved making CSSSVGDocumentValue::load() a const method and
marking CSSSVGDocumentValue's cache-related members as mutable.

BUG=526586

Committed: https://crrev.com/a04d68383de9cc5e71706c4f227b4c67ca4b433d
Cr-Commit-Position: refs/heads/master@{#397985}
==========

[commit-bot: I haz the power, 2016-06-06 06:34:05]

Patchset 2 (id:??) landed as
https://crrev.com/a04d68383de9cc5e71706c4f227b4c67ca4b433d
Cr-Commit-Position: refs/heads/master@{#397985}