Remove "using namespace v8" in header. This allows us to turn all warnings into errors. It also makes it clearer to find usage of v8 in the library.
diff --git a/fpdfsdk/src/javascript/JS_Context.cpp b/fpdfsdk/src/javascript/JS_Context.cpp
index 21acf59..c0d4e08 100644
--- a/fpdfsdk/src/javascript/JS_Context.cpp
+++ b/fpdfsdk/src/javascript/JS_Context.cpp
@@ -116,7 +116,7 @@
 FX_BOOL CJS_Context::RunScript(const CFX_WideString& script, CFX_WideString& info)

 {

 	v8::Isolate::Scope isolate_scope(m_pRuntime->GetIsolate());

-	HandleScope handle_scope(m_pRuntime->GetIsolate());

+	v8::HandleScope handle_scope(m_pRuntime->GetIsolate());

 	v8::Local<v8::Context> context = m_pRuntime->NewJSContext();

 	v8::Context::Scope context_scope(context);

 

@@ -126,7 +126,7 @@
 FX_BOOL CJS_Context::Compile(const CFX_WideString& script, CFX_WideString& info)

 {

 	v8::Isolate::Scope isolate_scope(m_pRuntime->GetIsolate());

-	HandleScope handle_scope(m_pRuntime->GetIsolate());

+	v8::HandleScope handle_scope(m_pRuntime->GetIsolate());

 	v8::Local<v8::Context> context = m_pRuntime->NewJSContext();

 	v8::Context::Scope context_scope(context);