PlzNavigate: make MHTML iframe load working.

third_party/WebKit/Source/core/loader/FrameFetchContext.cpp

Index: third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
diff --git a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
index 084840313156c8d0af5d142d4ad3dc055b8c58c4..3c5999e3d9fd49ebeb3329531ea19fdabb37e09a 100644
--- a/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
+++ b/third_party/WebKit/Source/core/loader/FrameFetchContext.cpp
@@ -675,7 +675,7 @@ MHTMLArchive* FrameFetchContext::Archive() const {
   DCHECK(!IsMainFrame());
   // TODO(nasko): How should this work with OOPIF?
   // The MHTMLArchive is parsed as a whole, but can be constructed from frames
-  // in mutliple processes. In that case, which process should parse it and how
+  // in multiple processes. In that case, which process should parse it and how
   // should the output be spread back across multiple processes?
   if (!GetFrame()->Tree().Parent()->IsLocalFrame())
     return nullptr;