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

content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm

Index: content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm
diff --git a/content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm b/content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm
index 4507325403b5e4cda365d6788c89a27e2bbf7e0e..4c7ec9415c48517e0820e214352152b39f99d4ab 100644
--- a/content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm
+++ b/content/browser/renderer_host/pepper/pepper_truetype_font_list_mac.mm
@@ -8,9 +8,32 @@
 
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/strings/sys_string_conversions.h"
+#include "ppapi/c/dev/ppb_truetype_font_dev.h"
+#include "ppapi/proxy/serialized_structs.h"
 
 namespace content {
 
+namespace {
+
+// Table to map AppKit weights to Pepper ones.
+const PP_TrueTypeFontWeight_Dev kPepperFontWeights[] = {
+    PP_TRUETYPEFONTWEIGHT_THIN,         // 0 is the minimum AppKit weight.
+    PP_TRUETYPEFONTWEIGHT_ULTRALIGHT,
+    PP_TRUETYPEFONTWEIGHT_ULTRALIGHT,
+    PP_TRUETYPEFONTWEIGHT_LIGHT,
+    PP_TRUETYPEFONTWEIGHT_LIGHT,
+    PP_TRUETYPEFONTWEIGHT_NORMAL,       // 5 is a 'normal' AppKit weight.
+    PP_TRUETYPEFONTWEIGHT_MEDIUM,
+    PP_TRUETYPEFONTWEIGHT_MEDIUM,
+    PP_TRUETYPEFONTWEIGHT_SEMIBOLD,
+    PP_TRUETYPEFONTWEIGHT_BOLD,         // 9 is a 'bold' AppKit weight.
+    PP_TRUETYPEFONTWEIGHT_ULTRABOLD,
+    PP_TRUETYPEFONTWEIGHT_HEAVY,
+};
+const NSInteger kPepperFontWeightsLength = arraysize(kPepperFontWeights);
+
+}  // namespace
+
 void GetFontFamilies_SlowBlocking(std::vector<std::string>* font_families) {
   base::mac::ScopedNSAutoreleasePool autorelease_pool;
   NSFontManager* fontManager = [[[NSFontManager alloc] init] autorelease];
@@ -20,4 +43,40 @@ void GetFontFamilies_SlowBlocking(std::vector<std::string>* font_families) {
     font_families->push_back(base::SysNSStringToUTF8(family_name));
 }
 
+void GetFontsInFamily_SlowBlocking(
+    const std::string& family,
+    std::vector<ppapi::proxy::SerializedTrueTypeFontDesc>* fonts_in_family) {
+  base::mac::ScopedNSAutoreleasePool autorelease_pool;
+  NSFontManager* fontManager = [[[NSFontManager alloc] init] autorelease];
+  NSString* ns_family = base::SysUTF8ToNSString(family);
+  NSArray* ns_fonts_in_family =
+      [fontManager availableMembersOfFontFamily:ns_family];
+
+  for (NSArray* font_info in ns_fonts_in_family) {
+    ppapi::proxy::SerializedTrueTypeFontDesc desc;
+    desc.family = family;
+    NSInteger font_weight = [[font_info objectAtIndex:2] intValue];
+    font_weight = std::max(0, font_weight);

[kylesch, 2013/04/19 05:10:58]

font_weight = std::max(static_cast<NSInteger>(0), font_weight);

[bbudge, 2013/04/19 10:30:03]

Thanks, I can try to land this when I re-enable the test on Mac.
On 2013/04/19 05:10:58, kylesch wrote:

+    font_weight = std::min(kPepperFontWeightsLength - 1, font_weight);
+    desc.weight = kPepperFontWeights[font_weight];
+
+    NSFontTraitMask font_traits =
+        [[font_info objectAtIndex:3] unsignedIntValue];
+    desc.style = PP_TRUETYPEFONTSTYLE_NORMAL;
+    if (font_traits & NSItalicFontMask)
+      desc.style = PP_TRUETYPEFONTSTYLE_ITALIC;
+
+    desc.width = PP_TRUETYPEFONTWIDTH_NORMAL;
+    if (font_traits & NSCondensedFontMask)
+      desc.width = PP_TRUETYPEFONTWIDTH_CONDENSED;
+    else if (font_traits & NSExpandedFontMask)
+      desc.width = PP_TRUETYPEFONTWIDTH_EXPANDED;
+
+    // Mac doesn't support requesting non-default character sets.
+    desc.charset = PP_TRUETYPEFONTCHARSET_DEFAULT;
+
+    fonts_in_family->push_back(desc);
+  }
+}
+
 }  // namespace content