[Blink] Display images on a dark background

third_party/WebKit/Source/core/html/ImageDocument.h

Index: third_party/WebKit/Source/core/html/ImageDocument.h
diff --git a/third_party/WebKit/Source/core/html/ImageDocument.h b/third_party/WebKit/Source/core/html/ImageDocument.h
index ed05b582602e98dfd033d1912a98bdd27aafa6dc..3f379819a160d57e665cf29f0bd57f51e580e3e0 100644
--- a/third_party/WebKit/Source/core/html/ImageDocument.h
+++ b/third_party/WebKit/Source/core/html/ImageDocument.h
@@ -47,6 +47,8 @@ class CORE_EXPORT ImageDocument final : public HTMLDocument {
   void windowSizeChanged();
   void imageUpdated();
   void imageClicked(int x, int y);
+  void imageLoaded();
+  void updateImageStyle();
 
   DECLARE_VIRTUAL_TRACE();
 
@@ -57,6 +59,9 @@ class CORE_EXPORT ImageDocument final : public HTMLDocument {
 
   void createDocumentStructure();
 
+  // Calculates how large the div needs to be to properly center the image.
+  int calculateDivWidth();
+
   // These methods are for m_shrinkToFitMode == Desktop.
   void resizeImageToFit();
   void restoreImageSize();
@@ -78,6 +83,12 @@ class CORE_EXPORT ImageDocument final : public HTMLDocument {
   // Whether the image should be shrunk or not
   bool m_shouldShrinkImage;
 
+  // Whether the image has finished loading or not
+  bool m_imageIsLoaded;
+
+  // Size of the checkerboard background tiles
+  int m_checkerSize;
+
   enum ShrinkToFitMode { Viewport, Desktop };
   ShrinkToFitMode m_shrinkToFitMode;
 };