Revert of Removing Chrome Gamepad transition cruft (https://codereview.chromium.org/202043003/)

Reason for revert:
Forgot to roll WebKit deps.

Original issue's description:
> Removing Chrome Gamepad transition cruft
> 
> BUG=344556
> TBR=eseidel@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=257454

TBR=eseidel@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=344556

Review URL: https://codereview.chromium.org/202123003

git-svn-id: http://src.chromium.org/svn/trunk/src/build@257460 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

common.gypi

@@ -1293,6 +1293,10 @@
     # Set to 1 to compile with the hole punching for the protected video.
     'video_hole%': 0,
 
+    # Enable a new Gamepad interface. This is temporary and should go
+    # away once the chrome and blink interfaces are in sync
+    'enable_new_gamepad_api%': 1,
+
     'conditions': [
       # The version of GCC in use, set later in platforms that use GCC and have
       # not explicitly chosen to build with clang. Currently, this means all
@@ -2261,6 +2265,9 @@
       ['enable_hidpi==1', {
         'defines': ['ENABLE_HIDPI=1'],
       }],
+      ['enable_new_gamepad_api==1', {
+        'defines': ['ENABLE_NEW_GAMEPAD_API=1'],
+      }],
       ['native_discardable_memory==1', {
         'defines': ['DISCARDABLE_MEMORY_ALWAYS_SUPPORTED_NATIVELY'],
       }],