This CL addresses 2 issues:

- we were not computing the max request text size correctly in some cases (by forgetting the size of the &q= string) causing assertions.
- the translate server might send inconsistent response in some cases, this CL makes sure we deal with them.
A common case is when sending separators only strings, which
we are not doing now anymore.
Other more complicated case are less clear.

BUG=35055
TEST=Visit www.spiegel.de and translate the page. The page
     should be translated correctly.

Review URL: http://codereview.chromium.org/594023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38637 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 0 deletions

diff --git a/base/string_util.h b/base/string_util.h
index 60f4f25..9e0da1e 100644
--- a/base/string_util.h
+++ b/base/string_util.h
@@ -217,6 +217,13 @@ std::string CollapseWhitespaceASCII(const std::string& text,
 bool ContainsOnlyWhitespaceASCII(const std::string& str);
 bool ContainsOnlyWhitespace(const string16& str);
 
+// Returns true if |input| is empty or contains only characters found in
+// |characters|.
+bool ContainsOnlyChars(const std::wstring& input,
+                       const std::wstring& characters);
+bool ContainsOnlyChars(const string16& input, const string16& characters);
+bool ContainsOnlyChars(const std::string& input, const std::string& characters);
+
 // These convert between ASCII (7-bit) and Wide/UTF16 strings.
 std::string WideToASCII(const std::wstring& wide);
 std::wstring ASCIIToWide(const base::StringPiece& ascii);