Fixes to account for windows' tab lines

* doc/lispref/display.texi (Size of Displayed Text): Fix entry
on 'window-text-pixel-size'.
* lisp/window.el (window--dump-window): Dump tab-line-height and
scroll-bar-height too.
(window--min-size-1): Take 'window-tab-line-height' into account.
* src/xdisp.c (Fwindow_text_pixel_size): Fix doc-string of
'window-text-pixel-size'.  Rename last argument to 'MODE-LINES'.

doc/lispref/display.texi

@@ -2050,7 +2050,7 @@ displayed in a given window.  This function is used by
 (@pxref{Resizing Windows}) to make a window exactly as large as the text
 it contains.
 
-@defun window-text-pixel-size &optional window from to x-limit y-limit mode-and-header-line
+@defun window-text-pixel-size &optional window from to x-limit y-limit mode-lines
 This function returns the size of the text of @var{window}'s buffer in
 pixels.  @var{window} must be a live window and defaults to the
 selected one.  The return value is a cons of the maximum pixel-width
@@ -2092,12 +2092,12 @@ calculating the pixel-height of a large buffer can take some time, it
 makes sense to specify this argument; in particular, if the caller
 does not know the size of the buffer.
 
-The optional argument @var{mode-and-header-line} @code{nil} or omitted
+The optional argument @var{mode-lines} @code{nil} or omitted means to
-means to not include the height of the mode- or header-line of
+not include the height of the mode-, tab- or header-line of @var{window}
-@var{window} in the return value.  If it is either the symbol
+in the return value.  If it is either the symbol @code{mode-line},
-@code{mode-line} or @code{header-line}, include only the height of that
+@code{tab-line} or @code{header-line}, include only the height of that
 line, if present, in the return value.  If it is @code{t}, include the
-height of both, if present, in the return value.
+height of all of these lines, if present, in the return value.
 @end defun
 
 @code{window-text-pixel-size} treats the text displayed in a window as a

lisp/window.el

@@ -1407,9 +1407,12 @@ before writing to it."
 		 (cadr fringes)
 		 (window-scroll-bar-width window)
 		 (window-right-divider-width window))
-	 (format "height header-line: %s  mode-line: %s  divider: %s\n"
+	 (format "height tab-line: %s header-line: %s  mode-line: %s\n"
+		 (window-tab-line-height window)
 		 (window-header-line-height window)
-		 (window-mode-line-height window)
+		 (window-mode-line-height window))
+	 (format "height scroll-bar: %s divider: %s"
+		 (window-scroll-bar-height window)
 		 (window-bottom-divider-width window)))))
     (insert "\n")))
 
@@ -1691,6 +1694,7 @@ return the minimum pixel-size of WINDOW."
 	 ((let ((char-size (frame-char-size window))
 		(pixel-height
 		 (+ (window-safe-min-size window nil t)
+		    (window-tab-line-height window)
 		    (window-header-line-height window)
 		    (window-scroll-bar-height window)
 		    (window-mode-line-height window)

src/xdisp.c

@@ -10661,13 +10661,13 @@ position specified by TO.  Since calculating the text height of a
 large buffer can take some time, it makes sense to specify this
 argument if the size of the buffer is large or unknown.
 
-Optional argument MODE-AND-HEADER-LINE nil or omitted means do not
+Optional argument MODE-LINES nil or omitted means do not include the
-include the height of the mode- or header-line of WINDOW in the return
+height of the mode-, tab- or header-line of WINDOW in the return value.
-value.  If it is either the symbol `mode-line' or `header-line', include
+If it is the symbol `mode-line', 'tab-line' or `header-line', include
 only the height of that line, if present, in the return value.  If t,
-include the height of both, if present, in the return value.  */)
+include the height of any of these, if present, in the return value.  */)
   (Lisp_Object window, Lisp_Object from, Lisp_Object to, Lisp_Object x_limit,
-   Lisp_Object y_limit, Lisp_Object mode_and_header_line)
+   Lisp_Object y_limit, Lisp_Object mode_lines)
 {
   struct window *w = decode_live_window (window);
   Lisp_Object buffer = w->contents;
@@ -10841,18 +10841,15 @@ include the height of both, if present, in the return value.  */)
   if (y > max_y)
     y = max_y;
 
-  if (EQ (mode_and_header_line, Qtab_line)
+  if (EQ (mode_lines, Qtab_line) || EQ (mode_lines, Qt))
-      || EQ (mode_and_header_line, Qt))
     /* Re-add height of tab-line as requested.  */
     y = y + WINDOW_TAB_LINE_HEIGHT (w);
 
-  if (EQ (mode_and_header_line, Qheader_line)
+  if (EQ (mode_lines, Qheader_line) || EQ (mode_lines, Qt))
-      || EQ (mode_and_header_line, Qt))
     /* Re-add height of header-line as requested.  */
     y = y + WINDOW_HEADER_LINE_HEIGHT (w);
 
-  if (EQ (mode_and_header_line, Qmode_line)
+  if (EQ (mode_lines, Qmode_line) || EQ (mode_lines, Qt))
-      || EQ (mode_and_header_line, Qt))
     /* Add height of mode-line as requested.  */
     y = y + WINDOW_MODE_LINE_HEIGHT (w);