Fix a typo in Viewport.MetaTagType

Fix a typo in Viewport.MetaTagType

ViewportDescription::MobileOptimizedMeta was wrongly used as
ViewportUMAType::MetaMobileOptimized.

BUG=

Committed: https://crrev.com/beb964ef5b2767f8149f5b3d82f6e92e4ee897d9
Cr-Commit-Position: refs/heads/master@{#428744}

[wychen, 2016-10-31 07:49:49]

wychen@chromium.org changed reviewers:
+ bokan@chromium.org

[wychen, 2016-10-31 07:49:50]

PTAL

[bokan, 2016-10-31 11:54:37]

Ouch, thanks. lgtm

[wychen, 2016-10-31 15:27:13]

The CQ bit was checked by wychen@chromium.org

[commit-bot: I haz the power, 2016-10-31 15:27:33]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-10-31 16:55:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-10-31 17:16:02]

Description was changed from

==========
Fix a typo in Viewport.MetaTagType

ViewportDescription::MobileOptimizedMeta was wrongly used as
ViewportUMAType::MetaMobileOptimized.

BUG=
==========

to

==========
Fix a typo in Viewport.MetaTagType

ViewportDescription::MobileOptimizedMeta was wrongly used as
ViewportUMAType::MetaMobileOptimized.

BUG=

Committed: https://crrev.com/beb964ef5b2767f8149f5b3d82f6e92e4ee897d9
Cr-Commit-Position: refs/heads/master@{#428744}
==========

[commit-bot: I haz the power, 2016-10-31 17:16:03]

Patchset 1 (id:??) landed as
https://crrev.com/beb964ef5b2767f8149f5b3d82f6e92e4ee897d9
Cr-Commit-Position: refs/heads/master@{#428744}

[wychen, 2016-11-02 21:34:44]

https://codereview.chromium.org/2465783002/diff/1/third_party/WebKit/Source/c...
File third_party/WebKit/Source/core/dom/ViewportDescription.cpp (right):

https://codereview.chromium.org/2465783002/diff/1/third_party/WebKit/Source/c...
third_party/WebKit/Source/core/dom/ViewportDescription.cpp:292:
metaTagTypeHistogram.count(MetaMobileOptimized);
MobileOptimizedMeta is 2, while MetaMobileOptimized is 5. ConstantWidth
(Viewport meta with constant width) was overcounted.