android_webview: Change auto to not deduce raw pointers.

android_webview/lib/main/aw_main_delegate.cc

Index: android_webview/lib/main/aw_main_delegate.cc
diff --git a/android_webview/lib/main/aw_main_delegate.cc b/android_webview/lib/main/aw_main_delegate.cc
index c45272bc4c9886cad0dca5d43b3fe893a20981c2..053a91e6ce1c5f6be96225a40eb11ba9e72b7495 100644
--- a/android_webview/lib/main/aw_main_delegate.cc
+++ b/android_webview/lib/main/aw_main_delegate.cc
@@ -153,7 +153,7 @@ void AwMainDelegate::PreSandboxStartup() {
       command_line.GetSwitchValueASCII(switches::kProcessType);
   int crash_signal_fd = -1;
   if (process_type == switches::kRendererProcess) {
-    auto global_descriptors = base::GlobalDescriptors::GetInstance();
+    auto* global_descriptors = base::GlobalDescriptors::GetInstance();
     int pak_fd = global_descriptors->Get(kAndroidWebViewLocalePakDescriptor);
     base::MemoryMappedFile::Region pak_region =
         global_descriptors->GetRegion(kAndroidWebViewLocalePakDescriptor);