Move blob-related code to platform/blob

Source/core/core.gypi

Index: Source/core/core.gypi
diff --git a/Source/core/core.gypi b/Source/core/core.gypi
index 40632b70a1a7105d4ce83af9ea7a3903177d87c1..d037c4a82b03f4340922aab0c57d59894517db80 100644
--- a/Source/core/core.gypi
+++ b/Source/core/core.gypi
@@ -962,10 +962,6 @@
             'fileapi/Blob.h',
             'fileapi/BlobBuilder.cpp',
             'fileapi/BlobBuilder.h',
-            'fileapi/BlobRegistry.cpp',
-            'fileapi/BlobRegistry.h',
-            'fileapi/BlobURL.cpp',
-            'fileapi/BlobURL.h',
             'fileapi/File.cpp',
             'fileapi/File.h',
             'fileapi/FileError.cpp',
@@ -3020,8 +3016,6 @@
             'platform/mock/ScrollbarThemeMock.cpp',
             'platform/mock/ScrollbarThemeMock.h',
             'platform/mock/ScrollbarThemeOverlayMock.h',
-            'platform/network/BlobData.cpp',
-            'platform/network/BlobData.h',
             'platform/network/FormData.cpp',
             'platform/network/FormDataBuilder.cpp',
             'platform/network/FormDataBuilder.h',
@@ -3561,7 +3555,6 @@
             'platform/chromium/support/WebSpeechSynthesisVoice.cpp',
             'platform/chromium/support/WebSpeechSynthesizerClientImpl.cpp',
             'platform/chromium/support/WebSpeechSynthesizerClientImpl.h',
-            'platform/chromium/support/WebThreadSafeData.cpp',
             'platform/chromium/support/WebTransformKeyframe.cpp',
             'platform/chromium/support/WebURLRequest.cpp',
             'platform/chromium/support/WebURLRequestPrivate.h',