Update TPM dialog text

+ Fixed issue with temporary object in CryptohomeClientStubImpl::TpmGetPassword
  that led to crash on Linux.

BUG=284831
TEST=manual

Review URL: https://chromiumcodereview.appspot.com/23531065

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224044 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/chromeos_strings.grdp

@@ -1645,7 +1645,7 @@ Press any key to continue exploring.
     System installation settings
   </message>
   <message name="IDS_EULA_TPM_DESCRIPTION" desc="Dialog box text">
-    Your computer contains a Trusted Platform Module (TPM) security device, which is used to implement many critical security features in Chrome OS.
+    Your computer contains a Trusted Platform Module (TPM) security device, which is used to implement many critical security features in Chrome OS. Visit the Chromebook Help Center to learn more: http://support.google.com/chromebook/?p=tpm
   </message>
   <message name="IDS_EULA_TPM_KEY_DESCRIPTION" desc="Dialog box text">
     Below is the randomly generated TPM password that has been assigned to your computer:

chromeos/dbus/cryptohome_client_stub.cc

@@ -139,7 +139,8 @@ void CryptohomeClientStubImpl::TpmGetPassword(
   const char kStubTpmPassword[] = "Stub-TPM-password";
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
-      base::Bind(callback, DBUS_METHOD_CALL_SUCCESS, kStubTpmPassword));
+      base::Bind(callback, DBUS_METHOD_CALL_SUCCESS,
+                 std::string(kStubTpmPassword)));
 }
 
 void CryptohomeClientStubImpl::TpmIsOwned(