Re-enable about:flags on Android

chrome/browser/about_flags.cc

Index: chrome/browser/about_flags.cc
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index fd2db82bcd86297aeb9c392a3d0045d42bc736d6..78813c8e565640d940ea0068cf7603bcf496bda9 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -70,6 +70,7 @@ void AddOsStrings(unsigned bitmask, ListValue* list) {
     {kOsWin, "Windows"},
     {kOsLinux, "Linux"},
     {kOsCrOS, "Chrome OS"},
+    {kOsAndroid, "Android"},
   };
   for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kBitsToOs); ++i)
     if (bitmask & kBitsToOs[i].bit)
@@ -379,11 +380,26 @@ const Experiment kExperiments[] = {
     SINGLE_VALUE_TYPE(switches::kDisableGpuVsync)
   },
   {
+    "enable-webgl",
+    IDS_FLAGS_ENABLE_WEBGL_NAME,
+    IDS_FLAGS_ENABLE_WEBGL_DESCRIPTION,
+    kOsAndroid,
+#if defined(OS_ANDROID)
+    SINGLE_VALUE_TYPE(switches::kEnableExperimentalWebGL)
+#else
+    SINGLE_VALUE_TYPE("")
+#endif
+  },
+  {
     "disable-webgl",
     IDS_FLAGS_DISABLE_WEBGL_NAME,
     IDS_FLAGS_DISABLE_WEBGL_DESCRIPTION,
-    kOsAll,
+    kOsAll ^ kOsAndroid,
+#if defined(OS_ANDROID)
+    SINGLE_VALUE_TYPE("")
+#else
     SINGLE_VALUE_TYPE(switches::kDisableExperimentalWebGL)
+#endif
   },
   {
     "fixed-position-creates-stacking-context",