Gyp flag to disable inlining.

gyp/common_conditions.gypi

 # conditions used in both common.gypi and skia.gyp in chromium
 #
 {
   'defines': [
     'SK_ALLOW_STATIC_GLOBAL_INITIALIZERS=<(skia_static_initializers)',
     'SK_SUPPORT_GPU=<(skia_gpu)',
     'SK_SUPPORT_OPENCL=<(skia_opencl)',
     'SK_DISTANCEFIELD_FONTS=<(skia_distancefield_fonts)',
   ],
   'conditions' : [
@@ skipping 124 matching lines @@
         'cflags_cc': [
           '-fno-rtti',
           '-Wnon-virtual-dtor',
         ],
         'conditions': [
           [ 'skia_warnings_as_errors', {
             'cflags': [
               '-Werror',
             ],
           }],
+          # For profiling; reveals some costs, exaggerates others (e.g. trivial setters & getters).
+          [ 'skia_disable_inlining', {
+            'cflags': [
+              '-fno-inline',
+              '-fno-default-inline',
+              '-finline-limit=0',
+              '-fno-omit-frame-pointer',
+            ],
+          }],
           [ 'skia_arch_type == "arm" and arm_thumb == 1', {
             'cflags': [
               '-mthumb',
             ],
             # The --fix-cortex-a8 switch enables a link-time workaround for
             # an erratum in certain Cortex-A8 processors.  The workaround is
             # enabled by default if you target the ARM v7-A arch profile.
             # It can be enabled otherwise by specifying --fix-cortex-a8, or
             # disabled unconditionally by specifying --no-fix-cortex-a8.
             #
@@ skipping 347 matching lines @@
       'defines': [
         'SK_USE_POSIX_THREADS',
       ],
     }],
   ], # end 'conditions'
   # The Xcode SYMROOT must be at the root. See build/common.gypi in chromium for more details
   'xcode_settings': {
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }