Extract an independent webkit_support_gfx target.

webkit/support/webkit_support_gfx.h

Index: webkit/support/webkit_support_gfx.h
diff --git a/webkit/support/webkit_support_gfx.h b/webkit/support/webkit_support_gfx.h
index d832fcc99db278b94946818604287753292d096d..9cfbe46bc34c5f91f556329ab33da4a306baf3a0 100644
--- a/webkit/support/webkit_support_gfx.h
+++ b/webkit/support/webkit_support_gfx.h
@@ -14,6 +14,32 @@
 
 namespace webkit_support {
 
+enum ColorFormat {

[tony, 2011/10/12 16:50:48]

Can we move this to the .cc file and put it in an anonymous namespace?

[HaoZheng, 2011/10/13 03:16:02]

Done.

+  // 3 bytes per pixel (packed), in RGB order regardless of endianness.
+  // This is the native JPEG format.
+  FORMAT_RGB,
+
+  // 4 bytes per pixel, in RGBA order in memory regardless of endianness.
+  FORMAT_RGBA,
+
+  // 4 bytes per pixel, in BGRA order in memory regardless of endianness.
+  // This is the default Windows DIB order.
+  FORMAT_BGRA,
+
+  // 4 bytes per pixel, in pre-multiplied kARGB_8888_Config format. For use
+  // with directly writing to a skia bitmap.
+  FORMAT_SkBitmap
+};
+
+// Represents a comment in the tEXt ancillary chunk of the png.
+struct Comment {

[tony, 2011/10/12 16:50:48]

This too.

[HaoZheng, 2011/10/13 03:16:02]

Done.

+  Comment(const std::string& k, const std::string& t);
+  ~Comment();
+
+  std::string key;
+  std::string text;
+};
+
 // Decode a PNG into an RGBA pixel array.
 bool DecodePNG(const unsigned char* input, size_t input_size,
                std::vector<unsigned char>* output,