Componentize VersionInfo.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index 7c3e331ab5e2335dba3c9d3e5832c9cd9b72b6c7..04234e96c185c322957dbfa25c79bbee21c5ba93 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -676,27 +676,27 @@ void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
   // Now that field trials have been created, initializes metrics recording.
   metrics->InitializeMetricsRecordingState();
 
-  const chrome::VersionInfo::Channel channel =
+  const version_info::Channel channel =
       chrome::VersionInfo::GetChannel();
 
   // TODO(dalecurtis): Remove these checks and enable for all channels once we
   // track down the root causes of crbug.com/422522 and crbug.com/478932.
-  if (channel == chrome::VersionInfo::CHANNEL_UNKNOWN ||
-      channel == chrome::VersionInfo::CHANNEL_CANARY ||
-      channel == chrome::VersionInfo::CHANNEL_DEV) {
+  if (channel == version_info::CHANNEL_UNKNOWN ||
+      channel == version_info::CHANNEL_CANARY ||
+      channel == version_info::CHANNEL_DEV) {
     media::AudioManager::EnableHangMonitor();
   }
 
   // Enable profiler instrumentation depending on the channel.
   switch (channel) {
-    case chrome::VersionInfo::CHANNEL_UNKNOWN:
-    case chrome::VersionInfo::CHANNEL_CANARY:
+    case version_info::CHANNEL_UNKNOWN:
+    case version_info::CHANNEL_CANARY:
       tracked_objects::ScopedTracker::Enable();
       break;
 
-    case chrome::VersionInfo::CHANNEL_DEV:
-    case chrome::VersionInfo::CHANNEL_BETA:
-    case chrome::VersionInfo::CHANNEL_STABLE:
+    case version_info::CHANNEL_DEV:
+    case version_info::CHANNEL_BETA:
+    case version_info::CHANNEL_STABLE:
       // Don't enable instrumentation.
       break;
   }