Translate: enable context menu against pages having notranslate meta tag

Translate: enable context menu against pages having notranslate meta tag

<meta name="google" value="notranslate"> tag disables Chrome Translate
feature completely. But, it is better to enable it in context menu.

 - enable context menu against pages having notranslate meta tag
 - rename confusing parameter name |page_translatable| to |page_needs_translation|
 - rename confusing function name IsPageTranslatable to IsTranslationAllowed
 - implement GetMetaElementsWithAttribute directly since this function is removed from webkit/glue

BUG=172593
[email protected]

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=201261

[Takashi Toyoshima, 2013-05-17 09:12:49]

Hi mad,
Can you take a look?
Basically, we want to enable context menu always when translation may be
possible technically. e.g., against sites having notranslate meta, sites on
which CLD thought unsupported language.

[Mattias Nissler (ping if slow), 2013-05-17 11:32:37]

chrome/browser/policy LGTM

[MAD, 2013-05-17 17:40:25]

LGTM!

Thanks...

BYE
MAD

[Takashi Toyoshima, 2013-05-20 05:49:00]

+sky for chrome/common/render_messages.h (trivial comment change)

[sky, 2013-05-20 14:59:27]

LGTM - feel free to TBR trivial changes

[commit-bot: I haz the power, 2013-05-20 15:03:00]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/[email protected]/15271002/29001

[commit-bot: I haz the power, 2013-05-20 15:13:18]

Retried try job too often on chromium_presubmit for step(s) presubmit
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=chromium_p...

[Takashi Toyoshima, 2013-05-21 04:08:48]

Oops, IPC message changes need a security review.
But, this change doesn't contain real IPC changes, but just modifies comments in
render_messages.h.
I'll land this with TBR=palmer.

[commit-bot: I haz the power, 2013-05-21 04:09:03]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/[email protected]/15271002/29001

[commit-bot: I haz the power, 2013-05-21 08:36:24]

Change committed as 201261