In BUILD.public, specify alwayslink for skia library.

tools/BUILD.public.expected

 This file is auto-generated by tools/BUILD_simulator.py.
 It expands BUILD.public to make it easy to see changes.
 COPTS = ['*** BEGIN //conditions:default ***',
  '-Wno-implicit-fallthrough',
  '-Wno-deprecated-declarations',
  '*** END //conditions:default ***',
  '*** BEGIN CONDITION_ANDROID ***',
  '-mfpu=neon',
  '*** END CONDITION_ANDROID ***']
 COPTS_ANDROID = ['-mfpu=neon']
@@ skipping 739 matching lines @@
  'include/gpu/GrConfig.h',
  'include/gpu/GrContext.h',
  'include/gpu/GrContextOptions.h',
  'include/gpu/GrCoordTransform.h',
  'include/gpu/GrDrawContext.h',
  'include/gpu/GrFragmentProcessor.h',
  'include/gpu/GrGpuResource.h',
  'include/gpu/GrGpuResourceRef.h',
  'include/gpu/GrInvariantOutput.h',
  'include/gpu/GrPaint.h',
- 'include/gpu/GrPathRendererChain.h',
  'include/gpu/GrProcessor.h',
  'include/gpu/GrProcessorUnitTest.h',
  'include/gpu/GrProgramElement.h',
  'include/gpu/GrRect.h',
  'include/gpu/GrRenderTarget.h',
  'include/gpu/GrResourceKey.h',
  'include/gpu/GrShaderVar.h',
  'include/gpu/GrSurface.h',
  'include/gpu/GrTestUtils.h',
  'include/gpu/GrTexture.h',
@@ skipping 719 matching lines @@
  'src/gpu/GrPaint.cpp',
  'src/gpu/GrPath.cpp',
  'src/gpu/GrPath.h',
  'src/gpu/GrPathProcessor.cpp',
  'src/gpu/GrPathProcessor.h',
  'src/gpu/GrPathRange.cpp',
  'src/gpu/GrPathRange.h',
  'src/gpu/GrPathRenderer.cpp',
  'src/gpu/GrPathRenderer.h',
  'src/gpu/GrPathRendererChain.cpp',
+ 'src/gpu/GrPathRendererChain.h',
  'src/gpu/GrPathRendering.cpp',
  'src/gpu/GrPathRendering.h',
  'src/gpu/GrPathUtils.cpp',
  'src/gpu/GrPathUtils.h',
  'src/gpu/GrPendingProgramElement.h',
  'src/gpu/GrPipeline.cpp',
  'src/gpu/GrPipeline.h',
  'src/gpu/GrPipelineBuilder.cpp',
  'src/gpu/GrPipelineBuilder.h',
  'src/gpu/GrPrimitiveProcessor.cpp',
@@ skipping 590 matching lines @@
  'src/ports/SkFontMgr_custom_directory_factory.cpp',
  'src/ports/SkGlobalInitialization_default.cpp',
  'src/ports/SkImageGenerator_skia.cpp',
  'src/ports/SkMemory_malloc.cpp',
  'src/ports/SkOSFile_posix.cpp',
  'src/ports/SkOSFile_stdio.cpp',
  'src/ports/SkOSLibrary.h',
  'src/ports/SkOSLibrary_posix.cpp',
  'src/ports/SkTLS_pthread.cpp',
  'src/ports/SkTime_Unix.cpp']