Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/tabs/pinned_tab_codec.cc

Index: chrome/browser/ui/tabs/pinned_tab_codec.cc
diff --git a/chrome/browser/ui/tabs/pinned_tab_codec.cc b/chrome/browser/ui/tabs/pinned_tab_codec.cc
index 8f46d0ee94bc1de46be4af933774b5415857b73d..7fd14663930dd11164d856ff30ae5d56a4fe4dbb 100644
--- a/chrome/browser/ui/tabs/pinned_tab_codec.cc
+++ b/chrome/browser/ui/tabs/pinned_tab_codec.cc
@@ -38,7 +38,7 @@ static bool HasPinnedTabs(Browser* browser) {
 
 // Adds a DictionaryValue to |values| representing |tab|.
 static void EncodeTab(const StartupTab& tab, base::ListValue* values) {
-  scoped_ptr<base::DictionaryValue> value(new base::DictionaryValue);
+  std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue);
   value->SetString(kURL, tab.url.spec());
   values->Append(value.release());
 }
@@ -48,7 +48,7 @@ static void EncodeTab(const StartupTab& tab, base::ListValue* values) {
 static void EncodePinnedTab(TabStripModel* model,
                             int index,
                             base::ListValue* values) {
-  scoped_ptr<base::DictionaryValue> value(new base::DictionaryValue());
+  std::unique_ptr<base::DictionaryValue> value(new base::DictionaryValue());
 
   content::WebContents* web_contents = model->GetWebContentsAt(index);
   NavigationEntry* entry = web_contents->GetController().GetActiveEntry();