Remove chromeos::CryptohomeLibrary::IsMounted and convert

chrome/browser/chromeos/cros/cryptohome_library.cc

Index: chrome/browser/chromeos/cros/cryptohome_library.cc
diff --git a/chrome/browser/chromeos/cros/cryptohome_library.cc b/chrome/browser/chromeos/cros/cryptohome_library.cc
index 176eaef26f0c5d97f4d95d646358947746f87dba..b67b55f9967dda4d48adfaef8f7ea8ccf71c55fd 100644
--- a/chrome/browser/chromeos/cros/cryptohome_library.cc
+++ b/chrome/browser/chromeos/cros/cryptohome_library.cc
@@ -29,12 +29,6 @@ class CryptohomeLibraryImpl : public CryptohomeLibrary {
   virtual ~CryptohomeLibraryImpl() {
   }
 
-  virtual bool IsMounted() OVERRIDE {
-    bool result = false;
-    DBusThreadManager::Get()->GetCryptohomeClient()->IsMounted(&result);
-    return result;
-  }
-
   virtual bool TpmIsEnabled() OVERRIDE {
     bool result = false;
     DBusThreadManager::Get()->GetCryptohomeClient()->CallTpmIsEnabledAndBlock(
@@ -143,10 +137,6 @@ class CryptohomeLibraryStubImpl : public CryptohomeLibrary {
     : locked_(false) {}
   virtual ~CryptohomeLibraryStubImpl() {}
 
-  virtual bool IsMounted() OVERRIDE {
-    return true;
-  }
-
   virtual bool TpmIsEnabled() OVERRIDE {
     return true;
   }