Bug 484076 - Shrink the glyph cache to fix tp_Rss regression. r=me

gfx/cairo/cache-size.patch

@@ -0,0 +1,19 @@
+commit c32b57b9ada7a57ec20648629ecb83de5688682a
+Author: Jeff Muizelaar <jmuizelaar@mozilla.com>
+Date:   Mon Mar 23 11:28:12 2009 -0400
+
+    shrink cache size
+
+diff --git a/src/cairo-scaled-font.c b/src/cairo-scaled-font.c
+index 249ab6c..aa7fc11 100644
+--- a/src/cairo-scaled-font.c
++++ b/src/cairo-scaled-font.c
+@@ -63,7 +63,7 @@
+  */
+ 
+ /* XXX: This number is arbitrary---we've never done any measurement of this. */
+-#define MAX_GLYPH_PAGES_CACHED 512
++#define MAX_GLYPH_PAGES_CACHED 256
+ static cairo_cache_t *cairo_scaled_glyph_page_cache;
+ 
+ #define CAIRO_SCALED_GLYPH_PAGE_SIZE 32

gfx/cairo/cairo/src/cairo-scaled-font.c

@@ -63,7 +63,7 @@
  */
 
 /* XXX: This number is arbitrary---we've never done any measurement of this. */
-#define MAX_GLYPH_PAGES_CACHED 512
+#define MAX_GLYPH_PAGES_CACHED 256
 static cairo_cache_t *cairo_scaled_glyph_page_cache;
 
 #define CAIRO_SCALED_GLYPH_PAGE_SIZE 32