Move remoting::GetUsername() from remoting/base to remoting/host

remoting/base/util.cc

Index: remoting/base/util.cc
diff --git a/remoting/base/util.cc b/remoting/base/util.cc
index d27b651e4f2fb555f207a9945b9c392467daf8b5..8102cb9bf5bdd7b3c1f3b8c6591f9619b0c3955f 100644
--- a/remoting/base/util.cc
+++ b/remoting/base/util.cc
@@ -14,12 +14,6 @@
 #include "third_party/libyuv/include/libyuv/convert.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_region.h"
 
-#if defined(OS_POSIX)
-#include <pwd.h>
-#include <sys/types.h>
-#include <unistd.h>
-#endif  // defined(OS_POSIX)
-
 using media::VideoFrame;
 
 namespace remoting {
@@ -313,25 +307,6 @@ bool StringIsUtf8(const char* data, size_t length) {
   return true;
 }
 
-std::string GetUsername() {
-#if defined(OS_ANDROID)
-  struct passwd* passwd = getpwuid(getuid());
-  return passwd ? passwd->pw_name : std::string();
-#elif defined(OS_POSIX)
-  long buf_size = sysconf(_SC_GETPW_R_SIZE_MAX);
-  if (buf_size <= 0)
-    return std::string();
-
-  scoped_ptr<char[]> buf(new char[buf_size]);
-  struct passwd passwd;
-  struct passwd* passwd_result = NULL;
-  getpwuid_r(getuid(), &passwd, buf.get(), buf_size, &passwd_result);
-  return passwd_result ? passwd_result->pw_name : std::string();
-#else  // !defined(OS_POSIX)
-  return std::string();
-#endif  // defined(OS_POSIX)
-}
-
 bool DoesRectContain(const webrtc::DesktopRect& a,
                      const webrtc::DesktopRect& b) {
   webrtc::DesktopRect intersection(a);