base: Rename EnvVarGetter to Environment.

Now EnvVarGetter do much more than getting environment variables.

Per suggestion from Pawel in http://codereview.chromium.org/3043018/.

BUG=None
TEST=trybots

Signed-off-by: Thiago Farina <[email protected]>

Review URL: http://codereview.chromium.org/3052034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@54696 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/remoting/host/simple_host_process.cc b/remoting/host/simple_host_process.cc
index 7f0b6bd4..4620f8f 100644
--- a/remoting/host/simple_host_process.cc
+++ b/remoting/host/simple_host_process.cc
@@ -20,7 +20,7 @@
 
 #include "base/at_exit.h"
 #include "base/command_line.h"
-#include "base/env_var.h"
+#include "base/environment.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/nss_util.h"