Use base::StringPairs where appropriate from src/ui

Use base::StringPairs where appropriate from src/ui

Becuase base/strings/string_split.h defines:
typedef std::vector<std::pair<std::string, std::string> > StringPairs;

BUG=412250
Committed: https://crrev.com/a85c48c21c31e2774d9788fbc77fa49f10863f35
Cr-Commit-Position: refs/heads/master@{#296206}

[Anand Ratn (left samsung), 2014-09-23 11:43:55]

anand.ratn@samsung.com changed reviewers:
+ avi@chromium.org, sky@chromium.org

[Anand Ratn (left samsung), 2014-09-23 11:43:56]

sky@chromium.org: Please review changes in src/ui module

avi@chromium.org: Please review changes in src/ui module

[Avi (use Gerrit), 2014-09-23 14:05:03]

On 2014/09/23 11:43:56, anand.ratn wrote:
> mailto:sky@chromium.org: Please review changes in src/ui module
> 
> mailto:avi@chromium.org: Please review changes in src/ui module

You do not need two reviewers for a one-line change. The general rule is to get
minimum coverage, one reviewer per file.

I'll take this review. This LGTM.

[Anand Ratn (left samsung), 2014-09-23 16:01:16]

On 2014/09/23 14:05:03, Avi wrote:
> On 2014/09/23 11:43:56, anand.ratn wrote:
> > mailto:sky@chromium.org: Please review changes in src/ui module
> > 
> > mailto:avi@chromium.org: Please review changes in src/ui module
> 
> You do not need two reviewers for a one-line change. The general rule is to
get
> minimum coverage, one reviewer per file.
> 
> I'll take this review. This LGTM.

Thanks for the review Avi. I'll keep that in mind for all future patch.

[Anand Ratn (left samsung), 2014-09-23 16:01:20]

The CQ bit was checked by anand.ratn@samsung.com

[commit-bot: I haz the power, 2014-09-23 16:01:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/593033002/1

[commit-bot: I haz the power, 2014-09-23 16:50:36]

Committed patchset #1 (id:1) as f488d755d38821da401fe2cab7b15d4842bb8c7c

[commit-bot: I haz the power, 2014-09-23 16:51:22]

Patchset 1 (id:??) landed as
https://crrev.com/a85c48c21c31e2774d9788fbc77fa49f10863f35
Cr-Commit-Position: refs/heads/master@{#296206}