Revert of Remove arm_float_abi=hard from GYP_DEFINES

Revert of Remove arm_float_abi=hard from GYP_DEFINES (patchset #1 id:1 of https://codereview.chromium.org/1141643004/)

Reason for revert:
This causes build breakages in v8:
http://build.chromium.org/p/client.v8/builders/V8%20Arm/builds/2109

The dependent CL https://codereview.chromium.org/1140503004/ takes care of chromium, but not v8.

Original issue's description:
> Remove arm_float_abi=hard from GYP_DEFINES
> 
> This is now the default for Linux ARM builds as
> of https://codereview.chromium.org/1140503004/.
> 
> R=phajdan.jr@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=295355

TBR=phajdan.jr@chromium.org,sbc@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

[Michael Achenbach, 2015-05-22 08:11:32]

Created Revert of Remove arm_float_abi=hard from GYP_DEFINES

[commit-bot: I haz the power, 2015-05-22 08:11:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1152193002/1

[commit-bot: I haz the power, 2015-05-22 08:11:47]

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

[commit-bot: I haz the power, 2015-05-22 08:11:48]

Failed to apply patch for
build/scripts/slave/recipe_modules/chromium/chromium_fyi.py:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
  Hunk #2 FAILED at 107.
  1 out of 2 hunks FAILED -- saving rejects to file
build/scripts/slave/recipe_modules/chromium/chromium_fyi.py.rej

Patch:       build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
Index: scripts/slave/recipe_modules/chromium/chromium_fyi.py
diff --git build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
index
c5926241e2a90ccb59a9ed0a5fecbf1c3ddd0921..2c0f284190199d52943c7677eb90cc8ffe370f17
100644
--- a/build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
+++ b/build/scripts/slave/recipe_modules/chromium/chromium_fyi.py
@@ -82,6 +82,7 @@
       },
       'bot_type': 'builder',
       'GYP_DEFINES': {
+        'arm_float_abi': 'hard',
         'test_isolation_mode': 'archive',
       },
       'test_generators': [
@@ -106,6 +107,9 @@
         'TARGET_BITS': 32,
       },
       'bot_type': 'builder',
+      'GYP_DEFINES': {
+        'arm_float_abi': 'hard',
+      },
       'use_isolate': True,
       'testing': {
         'platform': 'linux',

[Michael Achenbach, 2015-05-22 08:14:53]

Since this doesn't apply, I'll manually make a partial revert of the v8 stuff.