Add libpoppler PDF rasterizer

gyp/iconv.gyp

Index: gyp/iconv.gyp
diff --git a/gyp/iconv.gyp b/gyp/iconv.gyp
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+# GYP for iconv
+#
+# NOTE: WINDOWS BUILD ONLY.
+# iconv should be native to Mac and Linux.
+#
+# Based on instructions found on http://www.codeproject.com/Articles/302012/How-to-Build-libiconv-with-Microsoft-Visual-Studio
+
+{
+  'variables': {
+    'skia_warnings_as_errors': 0,
+  },
+  'targets': [
+    {
+      'target_name': 'iconv',
+      'type': 'static_library',
+      'include_dirs' : [
+        '../third_party/externals/iconv/lib',
+        '../third_party/iconv/global',
+      ],
+      'sources': [
+        '../third_party/externals/iconv/lib/iconv.c',
+        '../third_party/externals/iconv/libcharset/lib/localcharset.c',
+      ],
+
+      'conditions': [
+        ['skia_os == "win"', {
+          'include_dirs': [
+            '../third_party/iconv/windows',
+          ],
+          'direct_dependent_settings': {
+            'include_dirs': [
+              '../third_party/iconv/windows',
+            ],
+          },
+          'defines': [
+            'LIBDIR',
+          ],
+        }],
+      ],
+    },
+  ],
+}
+