linux: set -fvisiblility-inlines-hidden when building

build/common.gypi

 # Copyright (c) 2009 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   'variables': {
     # .gyp files should set chromium_code to 1 if they build Chromium-specific
@@ skipping 488 matching lines @@
           '<(werror)',  # See note above about the werror variable.
           '-pthread',
           '-fno-exceptions',
           '-fvisibility=hidden',
           '-Wall',
           '-D_FILE_OFFSET_BITS=64',
         ],
         'cflags_cc': [
           '-fno-rtti',
           '-fno-threadsafe-statics',
+          # Make inline functions have hidden visiblity by default.
+          # Surprisingly, not covered by -fvisibility=hidden.
+          '-fvisibility-inlines-hidden',
         ],
         'ldflags': [
           '-pthread',
         ],
         'scons_variable_settings': {
           'LIBPATH': ['$LIB_DIR'],
           # Linking of large files uses lots of RAM, so serialize links
           # using the handy flock command from util-linux.
           'FLOCK_LINK': ['flock', '$TOP_BUILDDIR/linker.lock', '$LINK'],
           'FLOCK_SHLINK': ['flock', '$TOP_BUILDDIR/linker.lock', '$SHLINK'],
@@ skipping 448 matching lines @@
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }
 
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