GeneratorGeneratedImage should be called GradientImage
https://bugs.webkit.org/show_bug.cgi?id=121085

Reviewed by Simon Fraser.

No new tests, just a refactor.

r150053 removed the concept of a Generator, making GeneratorGeneratedImage
take a Gradient. This leaves GeneratorGeneratedImage's name not making a
whole lot of sense, so let's rename it to GradientImage.

* CMakeLists.txt:
* GNUmakefile.list.am:
* Target.pri:
* WebCore.vcxproj/WebCore.vcxproj:
* WebCore.vcxproj/WebCore.vcxproj.filters:
* WebCore.xcodeproj/project.pbxproj:
* css/CSSGradientValue.cpp:
(WebCore::CSSGradientValue::image):
* platform/graphics/BitmapImage.h:
* platform/graphics/GradientImage.cpp: Renamed from Source/WebCore/platform/graphics/GeneratorGeneratedImage.cpp.
(WebCore::GradientImage::draw):
(WebCore::GradientImage::drawPattern):
* platform/graphics/GradientImage.h: Renamed from Source/WebCore/platform/graphics/GeneratorGeneratedImage.h.
* platform/graphics/Image.h:
* platform/graphics/ImageBuffer.h:
Rename.

* css/CSSImageGeneratorValue.cpp:
(WebCore::CSSImageGeneratorValue::cachedImageForSize):
(WebCore::CSSImageGeneratorValue::saveCachedImageForSize):
(WebCore::CSSImageGeneratorValue::CachedGeneratedImage::CachedGeneratedImage):
* css/CSSImageGeneratorValue.h:
(WebCore::CSSImageGeneratorValue::CachedGeneratedImage::image):
Drive-by, the CSSImageGeneratorValue generated image cache should be
in terms of GeneratedImage, not a random subclass, regardless
of the fact that it's only used for GradientImage as of yet.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@156226 268f45cc-cd09-0410-ab3c-d52691b4dbfc