Handle intranet hostnames more consistently.

AutocompleteInput::Parse() now usually marks intranet navigations as UNKNOWN and relies on the HistoryURLProvider to do the right thing.  In turn the HistoryURLProvider will mark URLs it's never seen as high-quality navigations if they have a hostname that's part of a previously-type intranet URL.

So for example, "abc/def" on a clean profile now defaults to searching rather than navigating; but if any URL on host "abc" has been typed before, both "abc/def" and "abc/def ghi" will navigate, despite the space in the second case.

This also changes the default behavior for some similar cases like "abc:81", "user:pass@abc", and "user:pass@abc:81".  Again these will all now default to searching, but navigate if the host in question has been typed.  Unchanged is the behavior of "abc/"; because the scheme-stripping code relies on a single trailing slash triggering a navigation, and because it's convenient for users to force navigation on an unknown host, this is still parsed as a URL.

BUG=6788
TEST=Navigate to "who/", then type "who/a b" and note that the default action is to navigate rather than search.
Review URL: http://codereview.chromium.org/7661028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@97470 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 6 insertions, 0 deletions

diff --git a/chrome/browser/autocomplete/history_url_provider.h b/chrome/browser/autocomplete/history_url_provider.h
index e928fbf..78925b1 100644
--- a/chrome/browser/autocomplete/history_url_provider.h
+++ b/chrome/browser/autocomplete/history_url_provider.h
@@ -215,6 +215,12 @@ class HistoryURLProvider : public HistoryProvider {
                             AutocompleteMatch* match,
                             history::HistoryMatches* matches) const;
 
+  // Helper function for FixupExactSuggestion, this returns true if the input
+  // corresponds to some intranet URL where the user has previously visited the
+  // host in question.  In this case the input should be treated as a URL.
+  bool CanFindIntranetURL(history::URLDatabase* db,
+                          const AutocompleteInput& input) const;
+
   // Determines if |match| is suitable for inline autocomplete, and promotes it
   // if so.
   bool PromoteMatchForInlineAutocomplete(