GeometryInterface: Add DOMMatrixInit and fromMatrix().

third_party/WebKit/Source/core/core.gypi

 {
     'includes': [
         'core_generated.gypi',
     ],
     'variables': {
         # Files for which bindings (.cpp and .h files) will be generated
         'core_idl_files': [
             'animation/KeyframeEffect.idl',
             'animation/AnimationEffectReadOnly.idl',
             'animation/AnimationEffectTiming.idl',
@@ skipping 3781 matching lines @@
             'svg/properties/SVGPropertyTearOff.cpp',
         ],
         'core_dictionary_idl_files': [
             'animation/AnimationEffectTimingProperties.idl',
             'animation/ComputedTimingProperties.idl',
             'animation/KeyframeEffectOptions.idl',
             'css/FontFaceDescriptors.idl',
             'css/FontFaceSetLoadEventInit.idl',
             'css/MediaQueryListEventInit.idl',
             'css/cssom/CSSCalcDictionary.idl',
+            'dom/DOMMatrixInit.idl',
             'dom/DOMPointInit.idl',
             'dom/ElementRegistrationOptions.idl',
             'dom/GetRootNodeOptions.idl',
             'dom/IdleRequestOptions.idl',
             'dom/IntersectionObserverInit.idl',
             'dom/MutationObserverInit.idl',
             'dom/shadow/ShadowRootInit.idl',
             'dom/TouchInit.idl',
             'events/AddEventListenerOptions.idl',
             'events/AnimationEventInit.idl',
@@ skipping 44 matching lines @@
             '<(blink_core_output_dir)/animation/KeyframeEffectOptions.cpp',
             '<(blink_core_output_dir)/animation/KeyframeEffectOptions.h',
             '<(blink_core_output_dir)/css/FontFaceDescriptors.cpp',
             '<(blink_core_output_dir)/css/FontFaceDescriptors.h',
             '<(blink_core_output_dir)/css/FontFaceSetLoadEventInit.cpp',
             '<(blink_core_output_dir)/css/FontFaceSetLoadEventInit.h',
             '<(blink_core_output_dir)/css/MediaQueryListEventInit.cpp',
             '<(blink_core_output_dir)/css/MediaQueryListEventInit.h',
             '<(blink_core_output_dir)/css/cssom/CSSCalcDictionary.cpp',
             '<(blink_core_output_dir)/css/cssom/CSSCalcDictionary.h',
+            '<(blink_core_output_dir)/dom/DOMMatrixInit.cpp',
+            '<(blink_core_output_dir)/dom/DOMMatrixInit.h',
             '<(blink_core_output_dir)/dom/DOMPointInit.cpp',
             '<(blink_core_output_dir)/dom/DOMPointInit.h',
             '<(blink_core_output_dir)/dom/ElementRegistrationOptions.cpp',
             '<(blink_core_output_dir)/dom/ElementRegistrationOptions.h',
             '<(blink_core_output_dir)/dom/GetRootNodeOptions.cpp',
             '<(blink_core_output_dir)/dom/GetRootNodeOptions.h',
             '<(blink_core_output_dir)/dom/IdleRequestOptions.cpp',
             '<(blink_core_output_dir)/dom/IdleRequestOptions.h',
             '<(blink_core_output_dir)/dom/IntersectionObserverInit.cpp',
             '<(blink_core_output_dir)/dom/IntersectionObserverInit.h',
@@ skipping 435 matching lines @@
             'timing/MemoryInfoTest.cpp',
             'timing/PerformanceBaseTest.cpp',
             'timing/PerformanceObserverTest.cpp',
             'workers/DedicatedWorkerTest.cpp',
             'workers/WorkerThreadTest.cpp',
             'workers/WorkerThreadTestHelper.h',
             'xml/parser/SharedBufferReaderTest.cpp',
         ],
     }
 }