Allow the tiling of theme background images on the NTP....

chrome/browser/browser_theme_provider.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_BROWSER_THEME_PROVIDER_H_
 #define CHROME_BROWSER_BROWSER_THEME_PROVIDER_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 38 matching lines @@
   // COLOR_FRAME* colors.
   static const char* kTintButtons;
   static const char* kTintFrame;
   static const char* kTintFrameInactive;
   static const char* kTintFrameIncognito;
   static const char* kTintFrameIncognitoInactive;
   static const char* kTintBackgroundTab;
 
   // Strings used by themes to identify miscellaneous numerical properties.
   static const char* kDisplayPropertyNTPAlignment;
+  static const char* kDisplayPropertyNTPTiling;
 
   // Strings used in alignment properties.
   static const char* kAlignmentTop;
   static const char* kAlignmentBottom;
   static const char* kAlignmentLeft;
   static const char* kAlignmentRight;
 
+  // Strings used in tiling properties.
+  static const char* kTilingNoRepeat;
+  static const char* kTilingRepeatX;
+  static const char* kTilingRepeatY;
+  static const char* kTilingRepeat;
+
   // Default colors.
   static const SkColor kDefaultColorFrame;
   static const SkColor kDefaultColorFrameInactive;
   static const SkColor kDefaultColorFrameIncognito;
   static const SkColor kDefaultColorFrameIncognitoInactive;
   static const SkColor kDefaultColorToolbar;
   static const SkColor kDefaultColorTabText;
   static const SkColor kDefaultColorBackgroundTabText;
   static const SkColor kDefaultColorBookmarkText;
   static const SkColor kDefaultColorNTPBackground;
@@ skipping 32 matching lines @@
     COLOR_NTP_SECTION_TEXT,
     COLOR_NTP_SECTION_LINK,
     COLOR_CONTROL_BACKGROUND,
     COLOR_BUTTON_BACKGROUND,
     TINT_BUTTONS,
     TINT_FRAME,
     TINT_FRAME_INACTIVE,
     TINT_FRAME_INCOGNITO,
     TINT_FRAME_INCOGNITO_INACTIVE,
     TINT_BACKGROUND_TAB,
-    NTP_BACKGROUND_ALIGNMENT
+    NTP_BACKGROUND_ALIGNMENT,
+    NTP_BACKGROUND_TILING
   };
 
   // A bitfield mask for alignments.
   typedef enum {
     ALIGN_CENTER = 0x0,
     ALIGN_LEFT = 0x1,
     ALIGN_TOP = 0x2,
     ALIGN_RIGHT = 0x4,
     ALIGN_BOTTOM = 0x8,
   } AlignmentMasks;
 
-  virtual void Init(Profile* profile);
+  // Background tiling choices.
+  enum {
+    NO_REPEAT = 0,
+    REPEAT_X = 1,
+    REPEAT_Y = 2,
+    REPEAT = 3
+  } Tiling;
+
+  void Init(Profile* profile);
 
   // ThemeProvider implementation.
   virtual SkBitmap* GetBitmapNamed(int id);
   virtual SkColor GetColor(int id);
   virtual bool GetDisplayProperty(int id, int* result);
   virtual bool ShouldUseNativeFrame();
   virtual bool HasCustomImage(int id);
 #if defined(OS_LINUX) && !defined(TOOLKIT_VIEWS)
   virtual GdkPixbuf* GetPixbufNamed(int id);
   virtual GdkPixbuf* GetRTLEnabledPixbufNamed(int id);
@@ skipping 13 matching lines @@
   virtual void SetNativeTheme() { UseDefaultTheme(); }
 
   // Convert a bitfield alignment into a string like "top left". Public so that
   // it can be used to generate CSS values. Takes a bitfield of AlignmentMasks.
   static std::string AlignmentToString(int alignment);
 
   // Parse alignments from something like "top left" into a bitfield of
   // AlignmentMasks
   static int StringToAlignment(const std::string &alignment);
 
+  // Convert a tiling value into a string like "no-repeat". Public
+  // so that it can be used to generate CSS values. Takes a Tiling.
+  static std::string TilingToString(int tiling);
+
+  // Parse tiling values from something like "no-repeat" into a Tiling value.
+  static int StringToTiling(const std::string &tiling);
+
  protected:
   // Sets an individual color value.
   void SetColor(const char* id, const SkColor& color);
 
   // Sets an individual tint value.
   void SetTint(const char* id, const skia::HSL& tint);
 
   // Generate any frame colors that weren't specified.
   void GenerateFrameColors();
 
@@ skipping 104 matching lines @@
 
   ImageMap images_;
   ColorMap colors_;
   TintMap tints_;
   DisplayPropertyMap display_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserThemeProvider);
 };
 
 #endif  // CHROME_BROWSER_BROWSER_THEME_PROVIDER_H_