Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/mac/MemoryActivatedFont.h

Index: Source/core/platform/graphics/mac/MemoryActivatedFont.h
diff --git a/Source/core/platform/graphics/mac/MemoryActivatedFont.h b/Source/core/platform/graphics/mac/MemoryActivatedFont.h
deleted file mode 100644
index 1f2bbae8a30a9cd2949a9eacb6188d5f879d7a47..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/mac/MemoryActivatedFont.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (c) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef MemoryActivatedFont_h
-#define MemoryActivatedFont_h
-
-#import <wtf/RefCounted.h>
-#import <wtf/RetainPtr.h>
-#import <wtf/text/WTFString.h>
-
-typedef struct CGFont* CGFontRef;
-
-namespace WebCore {
-
-// MemoryActivatedFont encapsulates a font loaded from another process and
-// activated from memory.
-//
-// Responsibilities:
-// * Holder for the CGFontRef & ATSFontRef belonging to the activated font.
-// * Responsible for unloading the font container when done.
-//
-// Memory Management:
-// The class is reference counted, with each instance of FontPlatformData that
-// uses this class holding a reference to it.
-// Entries are kept track of internally in a hash to allow quick lookup
-// of existing instances for reuse:
-// - fontCacheBySrcFontContainerRef() - key is the ATSFontContainerRef
-//   corresponding to the *original in-process NSFont* whose loading was blocked
-//   by the sandbox.
-//   This is needed to allow lookup of a pre-existing MemoryActivatedFont when
-//   creating a new FontPlatformData object.
-//
-// Assumptions:
-// This code assumes that an ATSFontRef is a unique identifier tied to an
-// activated font.  i.e. After we activate a font, its ATSFontRef doesn't
-// change.
-// It also assumes that the ATSFoncontainerRef for two in-memory NSFonts that
-// correspond to the same on-disk font file are always the same and don't change
-// with time.
-//
-// Flushing caches:
-// When the system notifies us of a system font cache flush, all FontDataCache
-// objects are destroyed.  This should in turn dereference all
-// MemoryActivatedFonts and thus unload all in-memory fonts.
-class MemoryActivatedFont : public RefCounted<MemoryActivatedFont> {
-public:
-    // Use to create a new object, see docs on constructor below.
-    static PassRefPtr<MemoryActivatedFont> create(uint32_t fontID, NSFont*, CGFontRef);
-    ~MemoryActivatedFont();
-
-    // Get cached CGFontRef corresponding to the in-memory font.
-    CGFontRef cgFont() { return m_cgFont.get(); }
-
-private:
-    // srcFontRef - ATSFontRef belonging to the NSFont object that failed to
-    // load in-process.
-    // container - a font container corresponding to an identical font that
-    // we loaded cross-process.
-    MemoryActivatedFont(uint32_t fontID, NSFont*, CGFontRef);
-
-    WTF::RetainPtr<CGFontRef> m_cgFont;
-    uint32_t m_fontID;
-    WTF::String m_inSandboxHashKey;
-};
-
-} // namespace WebCore
-
-#endif // MemoryActivatedFont_h