Make chrome.exe built with ASan/Win work with sandbox enabled

content/gpu/gpu_main.cc

Index: content/gpu/gpu_main.cc
diff --git a/content/gpu/gpu_main.cc b/content/gpu/gpu_main.cc
index a6728e042e44aa1f977bbd89951ecd5aa378e226..aeacd36dd4b0f2e63ed733c105ab91f024864930 100644
--- a/content/gpu/gpu_main.cc
+++ b/content/gpu/gpu_main.cc
@@ -521,6 +521,13 @@ bool StartSandboxWindows(const sandbox::SandboxInterfaceInfo* sandbox_info) {
   // content.
   sandbox::TargetServices* target_services = sandbox_info->target_services;
   if (target_services) {
+#if defined(ADDRESS_SANITIZER)
+    // Bind and leak dbghelp.dll before the token is lowered, otherwise
+    // AddressSanitizer will crash when trying to symbolize a report.
+    if (!LoadLibraryA("dbghelp.dll"))
+      return false;
+#endif
+
     target_services->LowerToken();
     return true;
   }