Cleanup in ios/chrome and ios/public/test.

ios/public/test/test_chrome_provider_initializer.cc

Index: ios/public/test/test_chrome_provider_initializer.cc
diff --git a/ios/public/test/test_chrome_provider_initializer.cc b/ios/public/test/test_chrome_provider_initializer.cc
index 082a0a73bd2772bad672c0db717c75269d6d811d..cd1419b3558297cb596406cb330236622b79ffff 100644
--- a/ios/public/test/test_chrome_provider_initializer.cc
+++ b/ios/public/test/test_chrome_provider_initializer.cc
@@ -10,14 +10,13 @@
 namespace ios {
 
 TestChromeProviderInitializer::TestChromeProviderInitializer() {
-  chrome_browser_provider_ = new TestChromeBrowserProvider();
-  ios::SetChromeBrowserProvider(chrome_browser_provider_);
+  chrome_browser_provider_.reset(new TestChromeBrowserProvider());
+  ios::SetChromeBrowserProvider(chrome_browser_provider_.get());
 }
 
 TestChromeProviderInitializer::~TestChromeProviderInitializer() {
-  EXPECT_EQ(chrome_browser_provider_, ios::GetChromeBrowserProvider());
+  EXPECT_EQ(chrome_browser_provider_.get(), ios::GetChromeBrowserProvider());
   ios::SetChromeBrowserProvider(NULL);
-  delete chrome_browser_provider_;
 }
 
 }  // namespace ios