Turn on ENABLE_NEW_GAMEPAD_API flag so that the new gamepad code is used

Turn on ENABLE_NEW_GAMEPAD_API flag so that the new gamepad code is used.
Also remove the old code on Chromium side. The ENABLE_NEW_GAMEPAD_API is only
needed until the Blink side #ifdefs are removed.

BUG=344556

Review URL: https://codereview.chromium.org/289423004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272723 0039d316-1c4b-4281-b951-d872f2087c98

build/common.gypi

@@ -2276,6 +2276,11 @@
       # Targets are by default not nacl untrusted code.
       'nacl_untrusted_build%': 0,
 
+      # Enable a new Gamepad interface.
+      # TODO(cdumez): This is temporary and should go away once the chromium
+      # and blink interfaces are in sync, http://crbug.com/344556.
+      'enable_new_gamepad_api%': 1,
+
       'pnacl_compile_flags': [
         # pnacl uses the clang compiler so we need to suppress all the
         # same warnings as we do for clang.
@@ -2445,6 +2450,9 @@
       ['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'],
       }],

ppapi/shared_impl/ppb_gamepad_shared.h

@@ -9,7 +9,6 @@
 #include "base/strings/string16.h"
 #include "ppapi/c/ppb_gamepad.h"
 #include "ppapi/shared_impl/ppapi_shared_export.h"
-#include "third_party/WebKit/public/platform/WebGamepads.h"
 
 namespace ppapi {
 
@@ -18,17 +17,9 @@ namespace ppapi {
 
 #pragma pack(push, 1)
 
-#if defined(ENABLE_NEW_GAMEPAD_API)
- typedef double buttonValueType;
- typedef double axisValueType;
-#else
- typedef float buttonValueType;
- typedef float axisValueType;
-#endif
-
 struct WebKitGamepadButton {
   bool pressed;
-  buttonValueType value;
+  double value;
 };
 
 // This must match the definition of blink::Gamepad. The GamepadHost unit test
@@ -53,7 +44,7 @@ struct WebKitGamepad {
   unsigned axes_length;
 
   // Normalized values representing axes, in the range [-1..1].
-  axisValueType axes[kAxesLengthCap];
+  double axes[kAxesLengthCap];
 
   // Number of valid entries in the buttons array.
   unsigned buttons_length;