Add full support for filesystem URLs.

chrome/browser/autocomplete/autocomplete.cc

Index: chrome/browser/autocomplete/autocomplete.cc
diff --git a/chrome/browser/autocomplete/autocomplete.cc b/chrome/browser/autocomplete/autocomplete.cc
index e6404e44c1c3601421a6bc831baf296b7244b536..2c77c98d3c91a28c6416a591cf907acade48c8a6 100644
--- a/chrome/browser/autocomplete/autocomplete.cc
+++ b/chrome/browser/autocomplete/autocomplete.cc
@@ -90,6 +90,7 @@ AutocompleteInput::AutocompleteInput(const string16& text,
   if (((type_ == UNKNOWN) || (type_ == REQUESTED_URL) || (type_ == URL)) &&
       canonicalized_url.is_valid() &&
       (!canonicalized_url.IsStandard() || canonicalized_url.SchemeIsFile() ||
+       canonicalized_url.SchemeIsFileSystem() ||
        !canonicalized_url.host().empty()))
     canonicalized_url_ = canonicalized_url;
 
@@ -161,6 +162,15 @@ AutocompleteInput::Type AutocompleteInput::Parse(
     return URL;
   }
 
+  if (LowerCaseEqualsASCII(parsed_scheme, chrome::kFileSystemScheme)) {
+    // This could theoretically be a strange search, but let's check.
+    ParseFileSystemURL(text.data(), text.length(), parts);

[sky, 2012/02/16 15:43:26]

Is it really safe to reuse parts here?

[ericu, 2012/02/22 00:00:51]

It would be if I'd remembered to clear out inner_parsed in DoParseFileSystemURL;
I'll have to do that in another CL.

However, URLFixerUpper::SegmentURL is already calling into ParseFileSystemURL,
so we can skip this call entirely.

+    // If it's got an inner_url with a scheme, it's a URL, whether it's valid or
+    // not.
+    if (parts->inner_parsed() && parts->inner_parsed()->scheme.is_valid())
+      return URL;
+  }
+
   // If the user typed a scheme, and it's HTTP or HTTPS, we know how to parse it
   // well enough that we can fall through to the heuristics below.  If it's
   // something else, we can just determine our action based on what we do with
@@ -450,6 +460,9 @@ void AutocompleteInput::ParseForEmphasizeComponents(
         host->reset();
       }
     }
+  } else if (LowerCaseEqualsASCII(scheme_str, chrome::kFileSystemScheme) &&
+             parts.inner_parsed() && parts.inner_parsed()->scheme.is_valid()) {
+    *host = parts.inner_parsed()->host;
   }
 }