Force linking as C++ library.

gyp/skia_lib.gyp

 # The minimal set of static libraries for basic Skia functionality.
 
 {
   'variables': {
     'component_libs': [
       'core.gyp:core',
       'effects.gyp:effects',
       'images.gyp:images',
       'opts.gyp:opts',
       'ports.gyp:ports',
@@ skipping 15 matching lines @@
       [ 'skia_gpu', {
         'component_libs': [
           'gpu.gyp:skgpu',
         ],
       }],
     ],
   },
   'targets': [
     {
       'target_name': 'skia_lib',
+      'sources': [ '<(skia_src_path)/core/SkForceCPlusPlusLinking.cpp', ],
       'conditions': [
         [ 'skia_shared_lib', {
           'conditions': [
             [ 'skia_os == "android"', {
               # The name skia will confuse the linker on android into using the system's libskia.so
               # instead of the one packaged with the apk. We simply choose a different name to fix
               # this.
               'product_name': 'skia_android',
             }, {
               'product_name': 'skia',
             }],
           ],
           'type': 'shared_library',
         }, {
           'type': 'none',
         }],
       ],
       'dependencies': [
         '<@(component_libs)',
       ],
       'export_dependent_settings': [
         '<@(component_libs)',
       ],
     },
   ],
 }