[FastTextAutosizer] Enable FastTextAutosizer on tot/dev by default

chrome/browser/android/chrome_startup_flags.cc

Index: chrome/browser/android/chrome_startup_flags.cc
diff --git a/chrome/browser/android/chrome_startup_flags.cc b/chrome/browser/android/chrome_startup_flags.cc
index 5aa7bc00d87a56b66bd880a924233716c743caba..36b2c68b9617a7720937ea2ed564be470317a033 100644
--- a/chrome/browser/android/chrome_startup_flags.cc
+++ b/chrome/browser/android/chrome_startup_flags.cc
@@ -55,4 +55,11 @@ void SetChromeSpecificCommandLineFlags() {
       channel == chrome::VersionInfo::CHANNEL_DEV) {
     SetCommandLineSwitch(switches::kEnableDomDistiller);
   }
+
+  // Enable the Fast Text Autosizer on local builds, canary and dev-channel.

[skobes, 2014/03/19 19:41:29]

Does this mean local builds will use FTA even without
--enable-fast-text-autosizing?  If so, how do we test a local build with the old
autosizer?

+  if (channel == chrome::VersionInfo::CHANNEL_UNKNOWN ||
+      channel == chrome::VersionInfo::CHANNEL_CANARY ||
+      channel == chrome::VersionInfo::CHANNEL_DEV) {
+    SetCommandLineSwitch(switches::kEnableFastTextAutosizing);
+  }
 }