2013-03-17  Igor Oliveira  <igor.o@sisa.samsung.com>

       For our own sake, WebCL objects should create opencl objects internally.
       Issue #145

       Move WebCLImage creation machinery from WebCLContext to WebCLImage::create
       Additionaly, fix WebCLImage::getInfo method.

       Reviewed by Antonio Gomes.

       * Modules/webcl/WebCLContext.cpp:
       (WebCore::WebCLContext::createImage2DBase):
       (WebCore::WebCLContext::createFromGLRenderBuffer):
       (WebCore):
       * Modules/webcl/WebCLImage.cpp:
       (WebCore::WebCLImage::create):
       (WebCore::WebCLImage::WebCLImage):
       (WebCore::WebCLImage::getInfo):
       * Modules/webcl/WebCLImage.h:
       (WebCLImage):
       (WebCore::WebCLImage::create):
       (WebCore::WebCLImage::WebCLImage):