Revert 124780 - Create a MediaSource object.

Source/WebCore/Target.pri

 # -------------------------------------------------------------------
 # Target file for the WebCore library
 #
 # See 'Tools/qmake/README' for an overview of the build system
 # -------------------------------------------------------------------
 
 TEMPLATE = lib
 TARGET = WebCore
 
 include(WebCore.pri)
@@ skipping 3010 matching lines @@
     SOURCES += \
         bindings/js/JSDirectoryEntryCustom.cpp \
         bindings/js/JSDirectoryEntrySyncCustom.cpp \
         bindings/js/JSEntryCustom.cpp \
         bindings/js/JSEntrySyncCustom.cpp \
         platform/AsyncFileSystem.cpp
 }
 
 contains(DEFINES, ENABLE_MEDIA_SOURCE=1) {
     HEADERS += \
-        Modules/mediasource/MediaSource.h \
-        Modules/mediasource/MediaSourceRegistry.h \
         Modules/mediasource/SourceBuffer.h \
         Modules/mediasource/SourceBufferList.h
     SOURCES += \
-        Modules/mediasource/MediaSource.cpp \
-        Modules/mediasource/MediaSourceRegistry.cpp \
         Modules/mediasource/SourceBuffer.cpp \
         Modules/mediasource/SourceBufferList.cpp
 }
 
 contains(DEFINES, ENABLE_ICONDATABASE=1) {
     SOURCES += \
         loader/icon/IconDatabase.cpp \
         loader/icon/IconRecord.cpp \
         loader/icon/PageURLRecord.cpp
 }
@@ skipping 946 matching lines @@
         SOURCES += platform/graphics/surfaces/mac/GraphicsSurfaceMac.cpp
         INCLUDEPATH += /System/Library/Frameworks/CoreFoundation.framework/Headers
     }
     contains(DEFINES, HAVE_XCOMPOSITE=1)  {
         SOURCES += platform/graphics/surfaces/qt/GraphicsSurfaceGLX.cpp
     }
 }
 
 # Make sure the derived sources are built
 include(DerivedSources.pri)