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

chrome/browser/ui/webui/fileicon_source_unittest.cc

Index: chrome/browser/ui/webui/fileicon_source_unittest.cc
diff --git a/chrome/browser/ui/webui/fileicon_source_unittest.cc b/chrome/browser/ui/webui/fileicon_source_unittest.cc
index 65fae982adee026dfc9720fe05883c5e62ccd7da..1bd13a42357760d18816b18fc7c869a69b598e76 100644
--- a/chrome/browser/ui/webui/fileicon_source_unittest.cc
+++ b/chrome/browser/ui/webui/fileicon_source_unittest.cc
@@ -113,7 +113,7 @@ TEST_F(FileIconSourceTest, FileIconSource_Parse) {
       supported_scale_factors);
 
   for (unsigned i = 0; i < arraysize(kBasicExpectations); i++) {
-    scoped_ptr<TestFileIconSource> source(CreateFileIconSource());
+    std::unique_ptr<TestFileIconSource> source(CreateFileIconSource());
     content::URLDataSource::GotDataCallback callback;
     EXPECT_CALL(*source.get(),
                 FetchFileIcon(