Linux/CrOS smooth scrolling support - behind a flag.

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 15b61a2c7f7e8c4a916b287ce8c4f7e0185d2b7f..f7360fda3a40a51c86835826df75462b457f9378 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -316,6 +316,15 @@ const Experiment kExperiments[] = {
     kOsAll,
     SINGLE_VALUE_TYPE(switches::kLevelDBIndexedDatabase)
   },
+#if defined(ENABLE_SMOOTH_SCROLLING)
+  {
+    "enable-smooth-scrolling",  // FLAGS:RECORD_UMA
+    IDS_FLAGS_ENABLE_SMOOTH_SCROLLING_NAME,
+    IDS_FLAGS_ENABLE_SMOOTH_SCROLLING_DESCRIPTION,
+    kOsAll,

[vangelis, 2011/06/02 20:33:56]

If your WebKit patch is only available on some platforms, kOsAll should be
replaced by specific platform names.

[Scott Byer, 2011/06/02 21:07:26]

See patch set #1. I think by the time we are ready for it to come out from
behind the compile time switch, it should be ready across platforms; we can
always revisit at that point. I don't have a strong opinion on this, though.

[vangelis, 2011/06/02 21:13:12]

Ah, ok. That makes sense.  I missed the fact that it's inside an
ENABLE_SMOOTH_SCROLLING fence.

+    SINGLE_VALUE_TYPE(switches::kEnableSmoothScrolling)
+  },
+#endif
 };
 
 const Experiment* experiments = kExperiments;