Move FuzzedDataProvider to //base and expose to blink

third_party/WebKit/Source/platform/blink_platform.gypi

 {
   'includes': [
     'platform_generated.gypi',
   ],
   'variables': {
     'platform_files': [
       'AsyncFileSystemCallbacks.h',
       'CalculationValue.h',
       'CheckedInt.h',
       'ContentDecryptionModuleResult.h',
@@ skipping 1366 matching lines @@
       'scheduler/test/lazy_scheduler_message_loop_delegate_for_tests.h',
       'scheduler/test/renderer_scheduler_test_support.cc',
       'scroll/ScrollbarTestSuite.h',
       'testing/CompositorTest.cpp',
       'testing/CompositorTest.h',
       'testing/FakeDisplayItemClient.h',
       'testing/FakeGraphicsLayer.h',
       'testing/FakeGraphicsLayerClient.h',
       'testing/FontTestHelpers.cpp',
       'testing/FontTestHelpers.h',
+      'testing/FuzzedDataProvider.cpp',
+      'testing/FuzzedDataProvider.h',
       'testing/GeometryPrinters.cpp',
       'testing/GeometryPrinters.h',
       'testing/HistogramTester.cpp',
       'testing/HistogramTester.h',
       'testing/MessageLoopForMojo.h',
       'testing/PaintPrinters.cpp',
       'testing/PaintPrinters.h',
       'testing/PictureMatchers.cpp',
       'testing/PictureMatchers.h',
       'testing/PlatformTestPrinters.cpp',
@@ skipping 46 matching lines @@
       ['use_default_render_theme==1',
         {
           'platform_test_files': [
             'scroll/ScrollbarThemeAuraTest.cpp',
           ],
         }
       ],
     ],
   },
 }