Add more .h files to the .gypi

BUG=skia:

Review URL: https://codereview.chromium.org/1386963002
diff --git a/gyp/core.gypi b/gyp/core.gypi
index 3aed713..2e2c1fd 100644
--- a/gyp/core.gypi
+++ b/gyp/core.gypi
@@ -15,12 +15,14 @@
         '<(skia_src_path)/c/sk_surface.cpp',
         '<(skia_src_path)/c/sk_types_priv.h',
 
+        '<(skia_src_path)/core/Sk4px.h',
         '<(skia_src_path)/core/SkAAClip.cpp',
         '<(skia_src_path)/core/SkAnnotation.cpp',
         '<(skia_src_path)/core/SkAdvancedTypefaceMetrics.cpp',
         '<(skia_src_path)/core/SkAdvancedTypefaceMetrics.h',
         '<(skia_src_path)/core/SkAlphaRuns.cpp',
         '<(skia_src_path)/core/SkAntiRun.h',
+        '<(skia_src_path)/core/SkAutoKern.h',
         '<(skia_src_path)/core/SkBBHFactory.cpp',
         '<(skia_src_path)/core/SkBBoxHierarchy.h',
         '<(skia_src_path)/core/SkBigPicture.cpp',
@@ -36,14 +38,20 @@
         '<(skia_src_path)/core/SkBitmapProcShader.h',
         '<(skia_src_path)/core/SkBitmapProcState.cpp',
         '<(skia_src_path)/core/SkBitmapProcState.h',
+        '<(skia_src_path)/core/SkBitmapProcState_filter.h',
         '<(skia_src_path)/core/SkBitmapProcState_matrix.h',
+        '<(skia_src_path)/core/SkBitmapProcState_matrix_template.h',
         '<(skia_src_path)/core/SkBitmapProcState_matrixProcs.cpp',
+        '<(skia_src_path)/core/SkBitmapProcState_procs.h',
         '<(skia_src_path)/core/SkBitmapProcState_sample.h',
+        '<(skia_src_path)/core/SkBitmapProcState_shaderproc.h',
+        '<(skia_src_path)/core/SkBitmapProcState_utils.h',
         '<(skia_src_path)/core/SkBitmapProvider.cpp',
         '<(skia_src_path)/core/SkBitmapProvider.h',
         '<(skia_src_path)/core/SkBitmapScaler.h',
         '<(skia_src_path)/core/SkBitmapScaler.cpp',
         '<(skia_src_path)/core/SkBlitBWMaskTemplate.h',
+        '<(skia_src_path)/core/SkBlitMask.h',
         '<(skia_src_path)/core/SkBlitMask_D32.cpp',
         '<(skia_src_path)/core/SkBlitRow_D16.cpp',
         '<(skia_src_path)/core/SkBlitRow_D32.cpp',
@@ -56,6 +64,7 @@
         '<(skia_src_path)/core/SkBuffer.cpp',
         '<(skia_src_path)/core/SkCachedData.cpp',
         '<(skia_src_path)/core/SkCanvas.cpp',
+        '<(skia_src_path)/core/SkCanvasPriv.h',
         '<(skia_src_path)/core/SkChunkAlloc.cpp',
         '<(skia_src_path)/core/SkClipStack.cpp',
         '<(skia_src_path)/core/SkColor.cpp',
@@ -74,9 +83,11 @@
         '<(skia_src_path)/core/SkDataTable.cpp',
         '<(skia_src_path)/core/SkDebug.cpp',
         '<(skia_src_path)/core/SkDeque.cpp',
+        '<(skia_src_path)/core/SkDescriptor.h',
         '<(skia_src_path)/core/SkDevice.cpp',
         '<(skia_src_path)/core/SkDeviceLooper.cpp',
         '<(skia_src_path)/core/SkDeviceProfile.cpp',
+        '<(skia_src_path)/core/SkDiscardableMemory.h',
         '<(skia_src_path)/lazy/SkDiscardableMemoryPool.cpp',
         '<(skia_src_path)/lazy/SkDiscardablePixelRef.cpp',
         '<(skia_src_path)/core/SkDistanceFieldGen.cpp',
@@ -87,11 +98,16 @@
         '<(skia_src_path)/core/SkDrawLooper.cpp',
         '<(skia_src_path)/core/SkDrawProcs.h',
         '<(skia_src_path)/core/SkEdgeBuilder.cpp',
+        '<(skia_src_path)/core/SkEdgeBuilder.h',
         '<(skia_src_path)/core/SkEdgeClipper.cpp',
+        '<(skia_src_path)/core/SkEdgeClipper.h',
+        '<(skia_src_path)/core/SkEmptyShader.h',
+        '<(skia_src_path)/core/SkEndian.h',
         '<(skia_src_path)/core/SkEdge.cpp',
         '<(skia_src_path)/core/SkEdge.h',
         '<(skia_src_path)/core/SkError.cpp',
         '<(skia_src_path)/core/SkErrorInternals.h',
+        '<(skia_src_path)/core/SkFDot6.h',
         '<(skia_src_path)/core/SkFilterProc.cpp',
         '<(skia_src_path)/core/SkFilterProc.h',
         '<(skia_src_path)/core/SkFilterShader.cpp',
@@ -108,6 +124,7 @@
         '<(skia_src_path)/core/SkFontStream.h',
         '<(skia_src_path)/core/SkGeometry.cpp',
         '<(skia_src_path)/core/SkGeometry.h',
+        '<(skia_src_path)/core/SkGlyph.h',
         '<(skia_src_path)/core/SkGlyphCache.cpp',
         '<(skia_src_path)/core/SkGlyphCache.h',
         '<(skia_src_path)/core/SkGlyphCache_Globals.h',
@@ -118,6 +135,7 @@
         '<(skia_src_path)/core/SkImageInfo.cpp',
         '<(skia_src_path)/core/SkImageCacherator.cpp',
         '<(skia_src_path)/core/SkImageGenerator.cpp',
+        '<(skia_src_path)/core/SkImageGeneratorPriv.h',
         '<(skia_src_path)/core/SkLayerInfo.h',
         '<(skia_src_path)/core/SkLight.h',
         '<(skia_src_path)/core/SkLightingShader.h',
@@ -131,25 +149,37 @@
         '<(skia_src_path)/core/SkMaskGamma.cpp',
         '<(skia_src_path)/core/SkMaskGamma.h',
         '<(skia_src_path)/core/SkMath.cpp',
+        '<(skia_src_path)/core/SkMathPriv.h',
         '<(skia_src_path)/core/SkMatrix.cpp',
         '<(skia_src_path)/core/SkMatrixImageFilter.cpp',
         '<(skia_src_path)/core/SkMatrixImageFilter.h',
+        '<(skia_src_path)/core/SkMatrixUtils.h',
         '<(skia_src_path)/core/SkMessageBus.h',
         '<(skia_src_path)/core/SkMetaData.cpp',
         '<(skia_src_path)/core/SkMipMap.cpp',
+        '<(skia_src_path)/core/SkMipMap.h',
         '<(skia_src_path)/core/SkMiniRecorder.cpp',
         '<(skia_src_path)/core/SkMultiPictureDraw.cpp',
+        '<(skia_src_path)/core/SkNextID.h',
         '<(skia_src_path)/core/SkNinePatchIter.cpp',
+        '<(skia_src_path)/core/SkNinePatchIter.h',
+        '<(skia_src_path)/core/SkNx.h',
         '<(skia_src_path)/core/SkOpts.cpp',
+        '<(skia_src_path)/core/SkOpts.h',
+        '<(skia_src_path)/core/SkOrderedReadBuffer.h',
         '<(skia_src_path)/core/SkPackBits.cpp',
         '<(skia_src_path)/core/SkPaint.cpp',
+        '<(skia_src_path)/core/SkPaintDefaults.h',
         '<(skia_src_path)/core/SkPaintPriv.cpp',
         '<(skia_src_path)/core/SkPaintPriv.h',
         '<(skia_src_path)/core/SkPath.cpp',
         '<(skia_src_path)/core/SkPathEffect.cpp',
         '<(skia_src_path)/core/SkPathMeasure.cpp',
+        '<(skia_src_path)/core/SkPathPriv.h',
         '<(skia_src_path)/core/SkPathRef.cpp',
+        '<(skia_src_path)/core/SkPerspIter.h',
         '<(skia_src_path)/core/SkPicture.cpp',
+        '<(skia_src_path)/core/SkPictureCommon.h',
         '<(skia_src_path)/core/SkPictureContentInfo.cpp',
         '<(skia_src_path)/core/SkPictureContentInfo.h',
         '<(skia_src_path)/core/SkPictureData.cpp',
@@ -180,6 +210,8 @@
         '<(skia_src_path)/core/SkRecords.cpp',
         '<(skia_src_path)/core/SkRecordDraw.cpp',
         '<(skia_src_path)/core/SkRecordOpts.cpp',
+        '<(skia_src_path)/core/SkRecordOpts.cpp',
+        '<(skia_src_path)/core/SkRecordPattern.h',
         '<(skia_src_path)/core/SkRecorder.cpp',
         '<(skia_src_path)/core/SkRect.cpp',
         '<(skia_src_path)/core/SkRefDict.cpp',
@@ -205,6 +237,7 @@
         '<(skia_src_path)/core/SkShader.cpp',
         '<(skia_src_path)/core/SkSharedMutex.cpp',
         '<(skia_src_path)/core/SkSharedMutex.h',
+        '<(skia_src_path)/core/SkSmallAllocator.h',
         '<(skia_src_path)/core/SkSpinlock.cpp',
         '<(skia_src_path)/core/SkSpriteBlitter_ARGB32.cpp',
         '<(skia_src_path)/core/SkSpriteBlitter_RGB16.cpp',
@@ -219,16 +252,21 @@
         '<(skia_src_path)/core/SkStrokeRec.cpp',
         '<(skia_src_path)/core/SkStrokerPriv.cpp',
         '<(skia_src_path)/core/SkStrokerPriv.h',
+        '<(skia_src_path)/core/SkSurfacePriv.h',
         '<(skia_src_path)/core/SkTaskGroup.cpp',
         '<(skia_src_path)/core/SkTaskGroup.h',
+        '<(skia_src_path)/core/SkTDPQueue.h',
+        '<(skia_src_path)/core/SkTDynamicHash.h',
         '<(skia_src_path)/core/SkTextBlob.cpp',
         '<(skia_src_path)/core/SkTextFormatParams.h',
         '<(skia_src_path)/core/SkTextMapStateProc.h',
+        '<(skia_src_path)/core/SkTextToPathIter.h',
         '<(skia_src_path)/core/SkTime.cpp',
         '<(skia_src_path)/core/SkTDPQueue.h',
         '<(skia_src_path)/core/SkThreadID.cpp',
         '<(skia_src_path)/core/SkTLList.h',
         '<(skia_src_path)/core/SkTLS.cpp',
+        '<(skia_src_path)/core/SkTMultiMap.h',
         '<(skia_src_path)/core/SkTraceEvent.h',
         '<(skia_src_path)/core/SkTraceEventCommon.h',
         '<(skia_src_path)/core/SkTSearch.cpp',
@@ -236,14 +274,18 @@
         '<(skia_src_path)/core/SkTypeface.cpp',
         '<(skia_src_path)/core/SkTypefaceCache.cpp',
         '<(skia_src_path)/core/SkTypefaceCache.h',
+        '<(skia_src_path)/core/SkTypefacePriv.h',
         '<(skia_src_path)/core/SkUnPreMultiply.cpp',
         '<(skia_src_path)/core/SkUtils.cpp',
         '<(skia_src_path)/core/SkValidatingReadBuffer.cpp',
+        '<(skia_src_path)/core/SkValidatingReadBuffer.h',
+        '<(skia_src_path)/core/SkValidationUtils.h',
         '<(skia_src_path)/core/SkVarAlloc.cpp',
         '<(skia_src_path)/core/SkVertState.cpp',
         '<(skia_src_path)/core/SkWriteBuffer.cpp',
         '<(skia_src_path)/core/SkWriter32.cpp',
         '<(skia_src_path)/core/SkXfermode.cpp',
+        '<(skia_src_path)/core/SkXfermode_proccoeff.h',
         '<(skia_src_path)/core/SkXfermodeInterpretation.cpp',
         '<(skia_src_path)/core/SkXfermodeInterpretation.h',
         '<(skia_src_path)/core/SkYUVPlanesCache.cpp',