Gamepad API support for chrome on android

content/child/runtime_features.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/child/runtime_features.h"
 
+#include "base/android/build_info.h"
 #include "base/command_line.h"
 #include "content/common/content_switches_internal.h"
 #include "content/public/common/content_switches.h"
 #include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "ui/native_theme/native_theme_switches.h"
 
 #if defined(OS_ANDROID)
 #include <cpu-features.h>
 #include "media/base/android/media_codec_bridge.h"
 #endif
 
 using blink::WebRuntimeFeatures;
 
 namespace content {
 
 static void SetRuntimeFeatureDefaultsForPlatform() {
 #if defined(OS_ANDROID)
   // MSE/EME implementation needs Android MediaCodec API.
   if (!media::MediaCodecBridge::IsAvailable()) {
     WebRuntimeFeatures::enableMediaSource(false);
     WebRuntimeFeatures::enablePrefixedEncryptedMedia(false);
     WebRuntimeFeatures::enableEncryptedMedia(false);
   }
   // WebAudio is enabled by default on ARM and X86 and only when the
   // MediaCodec API is available.
   WebRuntimeFeatures::enableWebAudio(
       media::MediaCodecBridge::IsAvailable() &&
       ((android_getCpuFamily() == ANDROID_CPU_FAMILY_ARM) ||
        (android_getCpuFamily() == ANDROID_CPU_FAMILY_X86)));
-  // Android does not support the Gamepad API.
-  WebRuntimeFeatures::enableGamepad(false);
+
+  // Android supports gamepad API for JellyBean and beyond
+  WebRuntimeFeatures::enableGamepad(
+      base::android::BuildInfo::GetInstance()->sdk_int() >= 16);
   // Android does not have support for PagePopup
   WebRuntimeFeatures::enablePagePopup(false);
   // Android does not yet support the Web Notification API. crbug.com/115320
   WebRuntimeFeatures::enableNotifications(false);
   // Android does not yet support SharedWorker. crbug.com/154571
   WebRuntimeFeatures::enableSharedWorker(false);
   // Android does not yet support NavigatorContentUtils.
   WebRuntimeFeatures::enableNavigatorContentUtils(false);
   WebRuntimeFeatures::enableTouchIconLoading(true);
   WebRuntimeFeatures::enableOrientationEvent(true);
@@ skipping 34 matching lines @@
     WebRuntimeFeatures::enableSharedWorker(false);
 
 #if defined(OS_ANDROID)
   if (command_line.HasSwitch(switches::kDisableWebRTC)) {
     WebRuntimeFeatures::enableMediaStream(false);
     WebRuntimeFeatures::enablePeerConnection(false);
   }
 
   if (!command_line.HasSwitch(switches::kEnableSpeechRecognition))
     WebRuntimeFeatures::enableScriptedSpeech(false);
+

[jdduke (slow), 2014/05/29 17:46:36]

Nit: Remove this extra newline.

[SaurabhK, 2014/05/30 09:13:45]

On 2014/05/29 17:46:36, jdduke wrote:

Done.

 #endif
 
   if (command_line.HasSwitch(switches::kEnableServiceWorker))
     WebRuntimeFeatures::enableServiceWorker(true);
 
 #if defined(OS_ANDROID)
   // WebAudio is enabled by default on ARM and X86, if the MediaCodec
   // API is available.
   WebRuntimeFeatures::enableWebAudio(
       !command_line.HasSwitch(switches::kDisableWebAudio) &&
@@ skipping 55 matching lines @@
     WebRuntimeFeatures::enableBleedingEdgeFastPaths(true);
 
   if (command_line.HasSwitch(switches::kEnablePreciseMemoryInfo))
     WebRuntimeFeatures::enablePreciseMemoryInfo(true);
 
   if (command_line.HasSwitch(switches::kEnableLayerSquashing))
     WebRuntimeFeatures::enableLayerSquashing(true);
 }
 
 }  // namespace content