Self-consistent header files.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7867 a592a061-630c-0410-9148-cb99ea01b6c8

src/WordLangTuple.h

@@ -12,6 +12,9 @@
 #ifndef WORD_LANG_TUPLE_H
 #define WORD_LANG_TUPLE_H
 
+#include <string>
+
+
 /**
  * A word and its given language code ("en_US").
  * This is used for spellchecking.

src/frontends/Menubar.h

@@ -13,6 +13,8 @@
 #ifndef MENUBAR_H
 #define MENUBAR_H
 
+#include <string>
+
 /**
  * The LyX GUI independent menubar class
  * The GUI interface is implemented in the frontends

src/frontends/qt2/QDocument.h

@@ -18,6 +18,8 @@
 #include "Qt2BC.h"
 
 #include <boost/scoped_ptr.hpp>
+#include <string>
+
 
 class ControlDocument;
 class QDocumentDialog;

src/frontends/qt2/qlkey.h

@@ -13,6 +13,7 @@
 #define QLKEY_H
 
 #include <qnamespace.h>
+#include <string>
 
 
 /**

src/mathed/math_gridinfo.h

@@ -12,13 +12,15 @@
 #ifndef MATH_GRIDINFO_H
 #define MATH_GRIDINFO_H
 
+#include <string>
+
 
 struct ColInfo
 {
 	ColInfo() : align('c'), rightline(0), leftline(false) {}
 	char   align;      // column alignment
-	string width;      // column width
-	string special;    // special column alignment
+	std::string width;      // column width
+	std::string special;    // special column alignment
 	int    rightline;  // a line on the right?
 	bool   leftline;
 };
@@ -39,7 +41,7 @@ struct CellInfo
 	   topline(false), bottomline(false)
 	{}
 
-	string content;    // cell content
+	std::string content;    // cell content
 	int multi;         // multicolumn flag
 	char align;        // cell alignment
 	bool leftline;     // do we have a line on the left?