Add FontMgr to DirectWrite.

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
===================================================================
--- src/gpu/gl/GrGLCaps.cpp	(revision 8915)
+++ src/gpu/gl/GrGLCaps.cpp	(working copy)
@@ -219,12 +219,14 @@
 
     GrGLint numFormats;
     GR_GL_GetIntegerv(gli, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats);
-    SkAutoSTMalloc<10, GrGLint> formats(numFormats);
-    GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);
-    for (int i = 0; i < numFormats; ++i) {
-        if (formats[i] == GR_GL_PALETTE8_RGBA8) {
-            f8BitPaletteSupport = true;
-            break;
+    if (numFormats) {

[bungeman-skia, 2013/04/29 22:59:06]

The 'debug' gl context sets numFormats to 0.

+        SkAutoSTMalloc<10, GrGLint> formats(numFormats);

[bungeman-skia, 2013/04/29 22:59:06]

The new SkAutoSTMalloc fPtr is NULL when constructed with a count of 0.

+        GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);

[bungeman-skia, 2013/04/29 22:59:06]

The first thing GR_GL_GetIntegerv does is

*formats = 0

Which is an iffy thing to do when one has zero formats.

+        for (int i = 0; i < numFormats; ++i) {
+            if (formats[i] == GR_GL_PALETTE8_RGBA8) {
+                f8BitPaletteSupport = true;
+                break;
+            }
         }
     }