Fixed crash in about:policy on OS_ANDROID and OS_IOS.

Fixed crash in about:policy on OS_ANDROID and OS_IOS.

Those platforms don't have extensions/ code, and should have the extension
policy code disabled.

BUG=248533
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=208236

[Joao da Silva, 2013-06-24 10:34:08]

@James: please review. Note that policy is still disabled by default on android
and ios, so this isn't urgently needed for 28.

@Anita: FYI. Please include similar guards on your pending CLs.

https://codereview.chromium.org/17593003/diff/1/chrome/browser/ui/webui/polic...
File chrome/browser/ui/webui/policy_ui.cc (right):

https://codereview.chromium.org/17593003/diff/1/chrome/browser/ui/webui/polic...
chrome/browser/ui/webui/policy_ui.cc:531:
extensions::ExtensionSystem::Get(Profile::FromWebUI(web_ui()));
Anita: this compiles but always returns NULL on OS_ANDROID. On OS_IOS this won't
link. You'll need something similar for the CL that sends extension policy names
to the page.

[anitawoodruff, 2013-06-24 11:53:52]

Added similar ifdef guards on my CL at https://codereview.chromium.org/17387002/

https://codereview.chromium.org/17593003/diff/1/chrome/browser/ui/webui/polic...
File chrome/browser/ui/webui/policy_ui.cc (right):

https://codereview.chromium.org/17593003/diff/1/chrome/browser/ui/webui/polic...
chrome/browser/ui/webui/policy_ui.cc:531:
extensions::ExtensionSystem::Get(Profile::FromWebUI(web_ui()));
On 2013/06/24 10:34:08, Joao da Silva wrote:
> Anita: this compiles but always returns NULL on OS_ANDROID. On OS_IOS this
won't
> link. You'll need something similar for the CL that sends extension policy
names
> to the page.

Done.

[James Hawkins, 2013-06-24 14:52:56]

LGTM but we need to figure out how to get rid of the ifdefs eventually.

[commit-bot: I haz the power, 2013-06-24 15:00:07]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/joaodasilva@chromium.org/17593003/1

[commit-bot: I haz the power, 2013-06-24 17:55:19]

Change committed as 208236