Bug #385486 --> back out FindInReadable changes for case insensitive unichar calls. This should fix mail filters which are broken in todays build.

sr=bienvneu

mailnews/addrbook/src/nsAbDirectoryQuery.cpp

@@ -594,9 +594,13 @@ nsresult nsAbDirectoryQuery::matchCardCondition (nsIAbCard* card,
             *matchFound = PR_TRUE;
             break;
         case nsIAbBooleanConditionTypes::Contains:
+            // When we move to frozen linkage, this should be:
+            // *matchFound = value.Find(matchValue, CaseInsensitiveCompare) >= 0;
             *matchFound = FindInReadable(matchValue, value, nsCaseInsensitiveStringComparator());
             break;
         case nsIAbBooleanConditionTypes::DoesNotContain:
+            // When we move to frozen linkage, this should be:
+            // *matchFound = value.Find(matchValue, CaseInsensitiveCompare) == -1;
             *matchFound = !FindInReadable(matchValue, value, nsCaseInsensitiveStringComparator());
             break;
         case nsIAbBooleanConditionTypes::Is:

mailnews/base/search/src/nsMsgSearchTerm.cpp

@@ -954,11 +954,13 @@ nsresult nsMsgSearchTerm::MatchString (const char *stringToMatch,
   switch (m_operator)
   {
   case nsMsgSearchOp::Contains:
-    if (utf16StrToMatch.Find(needle, PR_TRUE) >= 0)
+    // When we move to frozen linkage, this should be:
+    // utf16StrToMatch.Find(needle, CaseInsensitiveCompare)  >= 0);
+    if (CaseInsensitiveFindInReadable(needle, utf16StrToMatch))
       result = PR_TRUE;
     break;
   case nsMsgSearchOp::DoesntContain:
-    if (utf16StrToMatch.Find(needle, PR_TRUE) == -1)
+    if (!CaseInsensitiveFindInReadable(needle, utf16StrToMatch))
       result = PR_TRUE;
     break;
   case nsMsgSearchOp::Is:

mailnews/compose/src/nsMsgCompose.cpp

@@ -3628,9 +3628,17 @@ nsMsgCompose::LoadDataFromFile(nsILocalFile *file, nsString &sigData,
   {
     nsAutoString metaCharset(NS_LITERAL_STRING("charset="));
     AppendASCIItoUTF16(sigEncoding, metaCharset);
-    PRInt32 offset = sigData.Find(metaCharset, PR_TRUE);
-    if (offset >= 0)
-      sigData.Cut(offset, metaCharset.Length());
+    // When we move to frozen linkage, this should become:
+    // PRInt32 offset = sigData.Find(metaCharset, CaseInsensitiveCompare) ;
+    //  if (offset >= 0)
+    //    sigData.Cut(offset, metaCharset.Length());
+    nsAString::const_iterator realstart, start, end;
+    sigData.BeginReading(start);
+    sigData.EndReading(end);
+    realstart = start;
+    if (FindInReadable(metaCharset, start, end,
+                       nsCaseInsensitiveStringComparator()))
+      sigData.Cut(Distance(realstart, start), Distance(start, end));
   }
 
   return NS_OK;
@@ -4486,10 +4494,14 @@ NS_IMETHODIMP nsMsgCompose::CheckAndPopulateRecipients(PRBool populateMailList,
             if (atPos >= 0)
             {
               recipient->mEmail.Right(domain, recipient->mEmail.Length() - atPos - 1);
-              if (plaintextDomains.Find(domain, PR_TRUE) >= 0)
+              // when we move to frozen linkage this should be:
+              // if (plaintextDomains.Find(domain, CaseInsensitiveCompare) >= 0)
+              if (FindInReadable(domain, plaintextDomains, nsCaseInsensitiveStringComparator()))
                 recipient->mPreferFormat = nsIAbPreferMailFormat::plaintext;
               else
-                if (htmlDomains.Find(domain, PR_TRUE) >= 0)
+                // when we move to frozen linkage this should be:
+                // if (htmlDomains.Find(domain, CaseInsensitiveCompare) >= 0)
+                if (FindInReadable(domain, htmlDomains, nsCaseInsensitiveStringComparator()))
                   recipient->mPreferFormat = nsIAbPreferMailFormat::html;
             }
           }

mailnews/news/src/nsNntpIncomingServer.cpp

@@ -1699,7 +1699,13 @@ nsresult
 nsNntpIncomingServer::AppendIfSearchMatch(nsCString& newsgroupName)
 {
   NS_ConvertUTF8toUTF16 groupName(newsgroupName);
-  if (groupName.Find(mSearchValue, PR_TRUE) >= 0)
+  // When we move to frozen linkage this should be:
+  //   if (groupName.Find(mSearchValue, CaseInsensitiveCompare) >= 0)
+  nsAString::const_iterator start, end;
+  groupName.BeginReading(start);
+  groupName.EndReading(end);
+  if (FindInReadable(mSearchValue, start, end, 
+                     nsCaseInsensitiveStringComparator()))
       mSubscribeSearchResult.AppendCString(newsgroupName);
   return NS_OK;
 }