Support DirectInput gamepads on Windows.

content/content_browser.gypi

Index: content/content_browser.gypi
diff --git a/content/content_browser.gypi b/content/content_browser.gypi
index 32decc5cef598b624fb28ba38cedc1de168a36c6..cd1d35e73b698debd8246c9615a7b756e916a66b 100644
--- a/content/content_browser.gypi
+++ b/content/content_browser.gypi
@@ -406,6 +406,7 @@
     'browser/gamepad/gamepad_standard_mappings.h',
     'browser/gamepad/gamepad_standard_mappings_linux.cc',
     'browser/gamepad/gamepad_standard_mappings_mac.mm',
+    'browser/gamepad/gamepad_standard_mappings_win.cc',
     'browser/geolocation/core_location_data_provider_mac.h',
     'browser/geolocation/core_location_data_provider_mac.mm',
     'browser/geolocation/core_location_provider_mac.h',
@@ -996,12 +997,14 @@
       'link_settings': {
         'libraries': [
           '-lcomctl32.lib',

[scottmg, 2013/02/14 04:33:22]

bah, why do these have -l? Could you remove all the '-l's from the list since
you're here please?

[teravest, 2013/02/14 17:52:18]

Removing the -l causes link errors:
LINK : fatal error LNK1181: cannot open input file '../../content/comctl32.lib'

I don't know a ton about the build system, so I'll leave these as is.

+          '-ldinput8.lib',
           '-llocationapi.lib',
           '-lsensorsapi.lib',
         ],
         'msvs_settings': {
           'VCLinkerTool': {
             'DelayLoadDLLs': [
+              'dinput8.dll',
               'user32.dll',
             ],
           },