Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/speech/chrome_speech_recognition_preferences.cc

Index: chrome/browser/speech/chrome_speech_recognition_preferences.cc
diff --git a/chrome/browser/speech/chrome_speech_recognition_preferences.cc b/chrome/browser/speech/chrome_speech_recognition_preferences.cc
index d062a9014da9d2107ae9069bf13bf1cce3a481f7..62be83ad55187e3ffa2841afdc9994690fd38772 100644
--- a/chrome/browser/speech/chrome_speech_recognition_preferences.cc
+++ b/chrome/browser/speech/chrome_speech_recognition_preferences.cc
@@ -97,7 +97,7 @@ ChromeSpeechRecognitionPreferences::Service::~Service() {
 }
 
 void ChromeSpeechRecognitionPreferences::Service::Shutdown() {
-  DCHECK(preferences_);
+  DCHECK(preferences_.get());
   preferences_->DetachFromProfile();
 }
 
@@ -115,7 +115,7 @@ ChromeSpeechRecognitionPreferences::GetForProfile(Profile* profile) {
     ret = Factory::GetInstance()->GetForProfile(profile);
   }
 
-  if (!ret) {
+  if (!ret.get()) {
     // Create a detached preferences object if no profile is provided.
     ret = new ChromeSpeechRecognitionPreferences(NULL);
   }