Remove using directives ("using namespace x") from extensions/.

Bug: 82078
Change-Id: Ib001f3b8064dbcd99a7149623a62397109be9305
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1818298
Auto-Submit: Peter Kasting <[email protected]>
Commit-Queue: Jochen Eisinger <[email protected]>
Reviewed-by: Jochen Eisinger <[email protected]>
Cr-Commit-Position: refs/heads/master@{#698837}
diff --git a/extensions/renderer/binding_generating_native_handler.cc b/extensions/renderer/binding_generating_native_handler.cc
index 650d54e..0e12afa 100644
--- a/extensions/renderer/binding_generating_native_handler.cc
+++ b/extensions/renderer/binding_generating_native_handler.cc
@@ -13,7 +13,7 @@
 
 namespace extensions {
 
-using namespace v8_helpers;
+using v8_helpers::GetProperty;
 
 BindingGeneratingNativeHandler::BindingGeneratingNativeHandler(
     ScriptContext* context,
@@ -45,7 +45,7 @@
   // Convert |api_name| and |bind_to| into their v8::Strings to pass
   // through the v8 APIs.
   v8::Local<v8::String> v8_api_name;
-  if (!ToV8String(isolate, api_name_, &v8_api_name)) {
+  if (!v8_helpers::ToV8String(isolate, api_name_, &v8_api_name)) {
     NOTREACHED();
     return v8::Local<v8::Object>();
   }