Componentize VersionInfo.

chrome/common/extensions/features/feature_channel.h

Index: chrome/common/extensions/features/feature_channel.h
diff --git a/chrome/common/extensions/features/feature_channel.h b/chrome/common/extensions/features/feature_channel.h
index dd69f33d3442cc5e61e9893724bdcdf04d103273..88263a13c9287782cd617e63a5975c882908b8bd 100644
--- a/chrome/common/extensions/features/feature_channel.h
+++ b/chrome/common/extensions/features/feature_channel.h
@@ -10,24 +10,24 @@
 namespace extensions {
 
 // Gets the current channel as seen by the Feature system.
-chrome::VersionInfo::Channel GetCurrentChannel();
+version_info::Channel GetCurrentChannel();
 
 // Sets the current channel as seen by the Feature system. In the browser
 // process this should be chrome::VersionInfo::GetChannel(), and in the
 // renderer this will need to come from an IPC.
-void SetCurrentChannel(chrome::VersionInfo::Channel channel);
+void SetCurrentChannel(version_info::Channel channel);
 
 // Gets the default channel as seen by the Feature system.
-chrome::VersionInfo::Channel GetDefaultChannel();
+version_info::Channel GetDefaultChannel();
 
 // Scoped channel setter. Use for tests.
 class ScopedCurrentChannel {
  public:
-  explicit ScopedCurrentChannel(chrome::VersionInfo::Channel channel);
+  explicit ScopedCurrentChannel(version_info::Channel channel);
   ~ScopedCurrentChannel();
 
  private:
-  chrome::VersionInfo::Channel original_channel_;
+  version_info::Channel original_channel_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedCurrentChannel);
 };