Add Pepper TrueType font API call to enumerate fonts in a given family.

content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc

Index: content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc
diff --git a/content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc b/content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc
index 661266d9a8b508606ae90f9c340522cb232719be..24c3f5df2f53a6b49bbc5af5496c3c3086d46182 100644
--- a/content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc
+++ b/content/browser/renderer_host/pepper/pepper_truetype_font_list_linux.cc
@@ -9,6 +9,8 @@
 
 #include <string>
 
+#include "ppapi/proxy/serialized_structs.h"
+
 namespace content {
 
 void GetFontFamilies_SlowBlocking(std::vector<std::string>* font_families) {
@@ -17,9 +19,46 @@ void GetFontFamilies_SlowBlocking(std::vector<std::string>* font_families) {
   int num_families = 0;
   ::pango_font_map_list_families(font_map, &families, &num_families);
 
-  for (int i = 0; i < num_families; i++)
+  for (int i = 0; i < num_families; ++i)
     font_families->push_back(::pango_font_family_get_name(families[i]));
   g_free(families);
 }
 
+void GetFontsInFamily_SlowBlocking(
+    const std::string& family,
+    std::vector<ppapi::proxy::SerializedTrueTypeFontDesc>* fonts_in_family) {
+  PangoFontMap* font_map = ::pango_cairo_font_map_get_default();
+  PangoFontFamily** font_families = NULL;
+  int num_families = 0;
+  ::pango_font_map_list_families(font_map, &font_families, &num_families);
+
+  for (int i = 0; i < num_families; ++i) {
+    PangoFontFamily* font_family = font_families[i];
+    if (family.compare(::pango_font_family_get_name(font_family)) == 0) {
+      PangoFontFace** font_faces = NULL;
+      int num_faces = 0;
+      ::pango_font_family_list_faces(font_family, &font_faces, &num_faces);
+
+      for (int j = 0; j < num_faces; ++j) {
+        PangoFontFace* font_face = font_faces[j];
+        PangoFontDescription* font_desc = ::pango_font_face_describe(font_face);
+        ppapi::proxy::SerializedTrueTypeFontDesc desc;
+        desc.family = family;
+        if (::pango_font_description_get_style(font_desc) == PANGO_STYLE_ITALIC)
+          desc.style = PP_TRUETYPEFONTSTYLE_ITALIC;
+        desc.weight = static_cast<PP_TrueTypeFontWeight_Dev>(
+            ::pango_font_description_get_weight(font_desc));
+        desc.width = static_cast<PP_TrueTypeFontWidth_Dev>(
+            ::pango_font_description_get_stretch(font_desc));
+        // Character set is not part of Pango font description.
+        desc.charset = PP_TRUETYPEFONTCHARSET_DEFAULT;
+
+        fonts_in_family->push_back(desc);
+      }
+      g_free(font_faces);
+    }
+  }
+  g_free(font_families);
+}
+
 }  // namespace content