Revert of Updating Blink-side WebGamepad interface

Revert of Updating Blink-side WebGamepad interface (https://codereview.chromium.org/170993002/)

Reason for revert:
Compiler errors on chromium.webkit waterfall

Original issue's description:
> Updating Blink-side Gamepad API to match latest spec
> 
> BUG=344556
> R=abarth@chromium.org, scottmg@chromium.org
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=167539

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

[bajones, 2014-02-20 22:14:32]

Created Revert of Updating Blink-side WebGamepad interface

[commit-bot: I haz the power, 2014-02-20 22:14:41]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/bajones@chromium.org/171563007/1

[commit-bot: I haz the power, 2014-02-20 22:14:43]

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

[commit-bot: I haz the power, 2014-02-20 22:14:44]

Failed to apply patch for Source/modules/gamepad/Gamepad.cpp:
While running patch -p1 --forward --force --no-backup-if-mismatch;
  patching file Source/modules/gamepad/Gamepad.cpp
  Hunk #1 FAILED at 44.
  1 out of 1 hunk FAILED -- saving rejects to file
Source/modules/gamepad/Gamepad.cpp.rej

Patch:       Source/modules/gamepad/Gamepad.cpp
Index: Source/modules/gamepad/Gamepad.cpp
diff --git a/Source/modules/gamepad/Gamepad.cpp
b/Source/modules/gamepad/Gamepad.cpp
index
fbbfb9b53d9b476907a24fd0912332de868746f4..c83ccaf90a457ce81bcf3bc81f7680410dfefc00
100644
--- a/Source/modules/gamepad/Gamepad.cpp
+++ b/Source/modules/gamepad/Gamepad.cpp
@@ -44,21 +44,12 @@
         std::copy(data, data + count, m_axes.begin());
 }
 
-#if defined(ENABLE_NEW_GAMEPAD_API)
-void Gamepad::buttons(unsigned count, blink::WebGamepadButton* data)
-{
-    m_buttons.resize(count);
-    for (unsigned i = 0; i < count; ++i)
-        m_buttons[i] = data[i].value;
-}
-#else
 void Gamepad::buttons(unsigned count, float* data)
 {
     m_buttons.resize(count);
     if (count)
         std::copy(data, data + count, m_buttons.begin());
 }
-#endif
 
 Gamepad::~Gamepad()
 {