Fix Chromium enable_relocation_packing logic

Fix Chromium enable_relocation_packing logic

This CL makes GN build with relocation packing enabled work

Highlights:
- Removes usage of undefined relocation_packing_supported
- Makes pack_relocations.py work with GN

BUG=535389
Committed: https://crrev.com/89f02f3b806da2b04a2db60643408e51307eb834
Cr-Commit-Position: refs/heads/master@{#354045}

[pkotwicz, 2015-10-09 00:36:11]

pkotwicz@chromium.org changed reviewers:
+ simonb@chromium.org

[pkotwicz, 2015-10-09 00:36:11]

simonb@ can you please take a look?

https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules.gni
File build/config/android/rules.gni (left):

https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules....
build/config/android/rules.gni:1273: }
I kept this block of code

[simonb (inactive), 2015-10-09 16:10:28]

On 2015/10/09 at 00:36:11, pkotwicz wrote:
> simonb@ can you please take a look?
> 
>
https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules.gni
> File build/config/android/rules.gni (left):
> 
>
https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules....
> build/config/android/rules.gni:1273: }
> I kept this block of code

Thanks for taking care of this.

[simonb (inactive), 2015-10-09 16:10:31]

lgtm

[pkotwicz, 2015-10-09 17:14:15]

The CQ bit was checked by pkotwicz@chromium.org

[commit-bot: I haz the power, 2015-10-09 17:14:28]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1393843004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1393843004/1

[commit-bot: I haz the power, 2015-10-09 17:26:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-10-09 17:26:35]

Try jobs failed on following builders:
  chromium_presubmit on tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromium_presub...)

[pkotwicz, 2015-10-09 17:56:53]

pkotwicz@chromium.org changed reviewers:
+ agrieve@chromium.org, mcilroy@chromium.org

[pkotwicz, 2015-10-09 17:56:53]

agrieve@ and mcilroy@ can you please take a look?

agrieve@: build
mcilroy@: third_party/android_platform

[agrieve, 2015-10-09 18:00:34]

lgtm

https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules.gni
File build/config/android/rules.gni (right):

https://codereview.chromium.org/1393843004/diff/1/build/config/android/rules....
build/config/android/rules.gni:1475: "$rebased_gdbserver",
nit: pull out of ""s

[pkotwicz, 2015-10-13 14:52:28]

pkotwicz@chromium.org changed reviewers:
+ rmcilroy@chromium.org
- mcilroy@chromium.org

[pkotwicz, 2015-10-14 14:25:33]

rmcilroy@ can you please take a look at the changes in
third_party/android_platform

[rmcilroy, 2015-10-14 15:37:45]

lgtm

[pkotwicz, 2015-10-14 15:44:38]

The CQ bit was checked by pkotwicz@chromium.org

[pkotwicz, 2015-10-14 15:44:38]

The patchset sent to the CQ was uploaded after l-g-t-m from simonb@chromium.org,
agrieve@chromium.org
Link to the patchset: https://codereview.chromium.org/1393843004/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-10-14 15:44:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1393843004/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1393843004/20001

[commit-bot: I haz the power, 2015-10-14 17:01:51]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-14 17:03:12]

Patchset 2 (id:??) landed as
https://crrev.com/89f02f3b806da2b04a2db60643408e51307eb834
Cr-Commit-Position: refs/heads/master@{#354045}