Handle typographical apostrophe with spelling service client

chrome/browser/spellchecker/spelling_service_client.cc

Index: chrome/browser/spellchecker/spelling_service_client.cc
diff --git a/chrome/browser/spellchecker/spelling_service_client.cc b/chrome/browser/spellchecker/spelling_service_client.cc
index a0c1381cbb9a0eb9254982a6e9b02948f5181254..f05cbc18e93431a116fa8aed4dce40deed1e2953 100644
--- a/chrome/browser/spellchecker/spelling_service_client.cc
+++ b/chrome/browser/spellchecker/spelling_service_client.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/spellchecker/spelling_service_client.h"
 
+#include <algorithm>
+
 #include "base/json/json_reader.h"
 #include "base/json/string_escape.h"
 #include "base/logging.h"
@@ -66,8 +68,16 @@ bool SpellingServiceClient::RequestTextCheck(
       &language_code,
       &country_code);
 
+  // Replace typographical apostrophes with typewriter apostrophes, so that
+  // server word breaker behaves correctly.
+  const base::char16 kApostrophe = 0x27;
+  const base::char16 kRightSingleQuotationMark = 0x2019;
+  base::string16 text_copy = text;
+  std::replace(text_copy.begin(), text_copy.end(), kRightSingleQuotationMark,
+               kApostrophe);
+
   // Format the JSON request to be sent to the Spelling service.
-  std::string encoded_text = base::GetQuotedJSONString(text);
+  std::string encoded_text = base::GetQuotedJSONString(text_copy);
 
   static const char kSpellingRequest[] =
       "{"