Update from https://crrev.com/317530

build/common.gypi

 # Copyright (c) 2012 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 expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 566 matching lines @@
       # TODO(asvitkine): Enable this on all platforms and delete this flag.
       #                  http://crbug.com/105550
       'use_canvas_skia%': 0,
 
       # Set to "tsan", "memcheck", or "drmemory" to configure the build to work
       # with one of those tools.
       'build_for_tool%': '',
 
       # If no directory is specified then a temporary directory will be used.
       'test_isolation_outdir%': '',
-      # True if isolate should fail if the isolate files refer to files
-      # that are missing.
-      'test_isolation_fail_on_missing': 1,
 
       'wix_path%': '<(DEPTH)/third_party/wix',
 
       # Supervised users are enabled by default.
       'enable_supervised_users%': 1,
 
       # Platform natively supports discardable memory.
       'native_discardable_memory%': 0,
 
       # Platform sends memory pressure signals natively.
@@ skipping 23 matching lines @@
       # Variables to control Link-Time Optimizations (LTO).
       # Note: the variables must *not* be enabled at the same time.
       #       In this case LTO would 'merge' the optimization flags
       #       at link-time which would lead to all code be optimized with -O2.
       # Enable LTO on the code compiled with -Os.
       # See crbug.com/407544
       'use_lto%': 0,
       # Enable LTO on code compiled with -O2.
       'use_lto_o2%': 0,
 
+      # Allowed level of identical code folding in the gold linker.
+      'gold_icf_level%': 'safe',
+
       # Libxkbcommon usage.
       'use_xkbcommon%': 0,
 
       'conditions': [
         # A flag for POSIX platforms
         ['OS=="win"', {
           'os_posix%': 0,
         }, {
           'os_posix%': 1,
         }],
@@ skipping 507 matching lines @@
     'enable_autofill_dialog%': '<(enable_autofill_dialog)',
     'enable_prod_wallet_service%': '<(enable_prod_wallet_service)',
     'enable_background%': '<(enable_background)',
     'linux_use_bundled_gold%': '<(linux_use_bundled_gold)',
     'linux_use_bundled_binutils%': '<(linux_use_bundled_binutils)',
     'linux_use_gold_flags%': '<(linux_use_gold_flags)',
     'linux_use_debug_fission%': '<(linux_use_debug_fission)',
     'use_canvas_skia%': '<(use_canvas_skia)',
     'test_isolation_mode%': '<(test_isolation_mode)',
     'test_isolation_outdir%': '<(test_isolation_outdir)',
-    'test_isolation_fail_on_missing': '<(test_isolation_fail_on_missing)',
     'enable_basic_printing%': '<(enable_basic_printing)',
     'enable_print_preview%': '<(enable_print_preview)',
     'enable_spellcheck%': '<(enable_spellcheck)',
     'enable_google_now%': '<(enable_google_now)',
     'cld_version%': '<(cld_version)',
     'cld2_table_size%': '<(cld2_table_size)',
     'enable_captive_portal_detection%': '<(enable_captive_portal_detection)',
     'disable_file_support%': '<(disable_file_support)',
     'disable_ftp_support%': '<(disable_ftp_support)',
     'use_icu_alternatives_on_android%': '<(use_icu_alternatives_on_android)',
@@ skipping 21 matching lines @@
     'enable_mdns%' : '<(enable_mdns)',
     'enable_service_discovery%' : '<(enable_service_discovery)',
     'enable_wifi_bootstrapping%': '<(enable_wifi_bootstrapping)',
     'enable_hangout_services_extension%' : '<(enable_hangout_services_extension)',
     'v8_optimized_debug%': '<(v8_optimized_debug)',
     'proprietary_codecs%': '<(proprietary_codecs)',
     'use_goma%': '<(use_goma)',
     'gomadir%': '<(gomadir)',
     'use_lto%': '<(use_lto)',
     'use_lto_o2%': '<(use_lto_o2)',
+    'gold_icf_level%': '<(gold_icf_level)',
     'video_hole%': '<(video_hole)',
     'support_pre_M6_history_database%': '<(support_pre_M6_history_database)',
     'v8_use_external_startup_data%': '<(v8_use_external_startup_data)',
 
     # Use system protobuf instead of bundled one.
     'use_system_protobuf%': 0,
 
     # Use system yasm instead of bundled one.
     'use_system_yasm%': 0,
 
@@ skipping 583 matching lines @@
 
         # Uses system APIs for decoding audio and video.
         'use_libffmpeg%': '0',
 
         # TODO(torne): Remove this unsupported option once all the places that
         # test it have been updated.
         'use_system_stlport%': 0,
 
         # Copy it out one scope.
         'android_webview_build%': '<(android_webview_build)',
-
-        # Default android linker script for shared library exports.
-        'android_linker_script%': '<(SHARED_INTERMEDIATE_DIR)/android_exports.lst',
       }],  # OS=="android"
       ['embedded==1', {
         'use_system_fontconfig%': 0,
       }, {
         'use_system_fontconfig%': 1,
       }],
       ['chromecast==1', {
         'enable_mpeg2ts_stream_parser%': 1,
         'ffmpeg_branding%': 'ChromeOS',
         'ozone_platform_ozonex%': 1,
         'use_playready%': 0,
         'conditions': [
           ['target_arch=="arm"', {
             'arm_arch%': '',
             'arm_tune%': 'cortex-a9',
             'arm_thumb%': 1,
             'video_hole%': 1,
           }],
         ],
       }],
       ['android_webview_build==1', {
         # When building the WebView in the Android tree, jarjar will remap all
         # the class names, so the JNI generator needs to know this.
         'jni_generator_jarjar_file': '../android_webview/build/jarjar-rules.txt',
       }],
       ['OS=="linux" and target_arch!="mipsel"', {
-        # TODO(thakis): This is here to measure perf for a while.
         'clang%': 1,
       }],  # OS=="mac"
       ['OS=="mac"', {
         'conditions': [
           # All Chrome builds have breakpad symbols, but only process the
           # symbols from official builds.
           ['(branding=="Chrome" and buildtype=="Official")', {
             'mac_strip_release%': 1,
           }],
         ],
@@ skipping 292 matching lines @@
         'grit_rc_header_format': ['-h', '#define {textual_id} __pragma(message("whitelisted_resource_{numeric_id}")) {numeric_id}'],
       }],
       ['enable_mdns==1 or OS=="mac"', {
         'grit_defines': ['-D', 'enable_service_discovery'],
         'enable_service_discovery%': 1
       }],
       ['clang_use_chrome_plugins==1 and OS!="win"', {
         'clang_chrome_plugins_flags': [
           '<!@(<(DEPTH)/tools/clang/scripts/plugin_flags.sh)'
         ],
-        'conditions': [
-          # TODO(dcheng): https://crbug.com/417463 -- work to enable this flag
-          # on all platforms is currently underway.
-          ['OS=="android" or OS=="linux" or OS=="mac" or OS=="ios"', {
-            'clang_chrome_plugins_flags': [
-              '-Xclang',
-              '-plugin-arg-find-bad-constructs',
-              '-Xclang',
-              'strict-virtual-specifiers',
-            ],
-          }],
-        ],
       }],
       ['asan==1 or msan==1 or lsan==1 or tsan==1', {
         'clang%': 1,
         'use_allocator%': 'none',
         'use_sanitizer_options%': 1,
+        # Disable ICF in the linker to avoid debug info loss.
+        'gold_icf_level%': 'none',
       }],
       ['asan==1 and OS=="linux" and chromeos==0', {
         'use_custom_libcxx%': 1,
       }],
       ['ubsan==1', {
         'clang%': 1,
       }],
       ['ubsan_vptr==1', {
         'clang%': 1,
       }],
@@ skipping 294 matching lines @@
         # pnacl uses the clang compiler so we need to suppress all the
         # same warnings as we do for clang.
         # TODO(sbc): Remove these if/when they are removed from the clang
         # build.
         '-Wno-unused-function',
         '-Wno-char-subscripts',
         '-Wno-c++11-extensions',
         '-Wno-unnamed-type-template-args',
       ],
 
+      # By default, Android targets have their exported JNI symbols stripped,
+      # so we test the manual JNI registration code paths that are required
+      # when using the crazy linker. To allow use of native JNI exports (lazily
+      # resolved by the JVM), targets can enable this variable, which will stop
+      # the stripping from happening. Only targets which do not need to be
+      # compatible with the crazy linker are permitted to set this.
+      'use_native_jni_exports%': 0,
+
       'conditions': [
         ['OS=="win" and component=="shared_library"', {
           # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
           'win_release_RuntimeLibrary%': '2', # 2 = /MD (nondebug DLL)
           'win_debug_RuntimeLibrary%': '3',   # 3 = /MDd (debug DLL)
         }, {
           # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
           'win_release_RuntimeLibrary%': '0', # 0 = /MT (nondebug static)
           'win_debug_RuntimeLibrary%': '1',   # 1 = /MTd (debug static)
         }],
@@ skipping 1022 matching lines @@
       },
     }],
     # TODO(jochen): Enable this on chromeos on arm. http://crbug.com/356580
     ['os_posix==1 and disable_fatal_linker_warnings==0 and use_evdev_gestures==0 and (chromeos==0 or target_arch!="arm")', {
       'target_defaults': {
         'ldflags': [
           '-Wl,--fatal-warnings',
         ],
       },
     }],
-    # TODO(thakis): Enable this everywhere. http://crbug.com/371125
+    # -Wl,-z,-defs doesn't work with the sanitiziers, http://crbug.com/452065
     ['(OS=="linux" or OS=="android") and asan==0 and msan==0 and tsan==0 and ubsan==0 and ubsan_vptr==0', {
       'target_defaults': {
         'ldflags': [
           '-Wl,-z,defs',
         ],
       },
     }],
     ['os_posix==1 and chromeos==0', {
       # Chrome OS enables -fstack-protector-strong via its build wrapper,
       # and we want to avoid overriding this, so stack-protector is only
@@ skipping 876 matching lines @@
                   # '-Wl,--threads',
                   # '-Wl,--thread-count=4',
                 ],
               }],
             ],
             'conditions': [
               ['release_valgrind_build==0 and order_profiling==0', {
                 'target_conditions': [
                   ['_toolset=="target"', {
                     'ldflags': [
-                      '-Wl,--icf=safe',
+                      '-Wl,--icf=<(gold_icf_level)',
                     ],
                   }],
                 ],
               }],
             ],
           }],
           ['linux_use_bundled_binutils==1', {
             'cflags': [
               '-B<!(cd <(DEPTH) && pwd -P)/<(binutils_dir)',
             ],
@@ skipping 159 matching lines @@
               '_STLP_USE_PTR_SPECIALIZATIONS=1',
               'CHROME_BUILD_ID="<(chrome_build_id)"',
             ],
             'ldflags!': [
               '-pthread',  # Not supported by Android toolchain.
             ],
             'ldflags': [
               '-Wl,--no-undefined',
             ],
             'conditions': [
-              ['component=="static_library"', {
-                'ldflags': [
-                  '-Wl,--exclude-libs=ALL',
+              ['component=="static_library" and android_webview_build==0', {
+                'target_conditions': [
+                  ['use_native_jni_exports==0', {
+                    # Use a linker version script to strip JNI exports from
+                    # binaries which have not specifically asked to use them.
+                    'ldflags': [
+                      '-Wl,--version-script=<!(cd <(DEPTH) && pwd -P)/build/android/android_no_jni_exports.lst',
+                    ],
+                  }],
                 ],
               }],
               ['clang==1', {
                 'cflags': [
                   # Work around incompatibilities between bionic and clang
                   # headers.
                   '-D__compiler_offsetof=__builtin_offsetof',
                   '-Dnan=__builtin_nan',
                 ],
                 'conditions': [
@@ skipping 39 matching lines @@
                   # The NDK has these things, but doesn't define the constants
                   # to say that it does. Define them here instead.
                   'HAVE_SYS_UIO_H',
                 ],
                 'cflags': [
                   '--sysroot=<(android_ndk_sysroot)',
                 ],
                 'ldflags': [
                   '--sysroot=<(android_ndk_sysroot)',
                   '-nostdlib',
+                  # Don't allow visible symbols from libgcc or stlport to be
+                  # re-exported.
+                  '-Wl,--exclude-libs=libgcc.a',
+                  '-Wl,--exclude-libs=libstlport_static.a',
+                  # Don't allow visible symbols from libraries that contain
+                  # assembly code with symbols that aren't hidden properly.
+                  # http://crbug.com/448386
+                  '-Wl,--exclude-libs=libcommon_audio.a',
+                  '-Wl,--exclude-libs=libcommon_audio_neon.a',
+                  '-Wl,--exclude-libs=libcommon_audio_sse2.a',
+                  '-Wl,--exclude-libs=libiSACFix.a',
+                  '-Wl,--exclude-libs=libisac_neon.a',
+                  '-Wl,--exclude-libs=libopus.a',
+                  '-Wl,--exclude-libs=libvpx.a',
                 ],
                 'libraries': [
                   '-l<(android_stlport_library)',
                   # Manually link the libgcc.a that the cross compiler uses.
                   '<!(<(android_toolchain)/*-gcc -print-libgcc-file-name)',
                   '-lc',
                   '-ldl',
                   '-lm',
                 ],
               }],
@@ skipping 36 matching lines @@
                     ],
                     'cflags_cc': [
                       '-Wno-non-virtual-dtor',
                     ],
                   }],
                 ],
               }],
               ['target_arch == "arm" and order_profiling==0', {
                 'ldflags': [
                   # Enable identical code folding to reduce size.
-                  '-Wl,--icf=safe',
+                  '-Wl,--icf=<(gold_icf_level)',
                 ],
               }],
               # NOTE: The stlport header include paths below are specified in
               # cflags rather than include_dirs because they need to come
               # after include_dirs. Think of them like system headers, but
               # don't use '-isystem' because the arm-linux-androideabi-4.4.3
               # toolchain (circa Gingerbread) will exhibit strange errors.
               # The include ordering here is important; change with caution.
               ['android_webview_build==0', {
                 'cflags': [
@@ skipping 39 matching lines @@
                   # crtbegin_dynamic.o should be the last item in ldflags.
                   '<(android_ndk_lib)/crtbegin_dynamic.o',
                 ],
                 'libraries': [
                   # crtend_android.o needs to be the last item in libraries.
                   # Do not add any libraries after this!
                   '<(android_ndk_lib)/crtend_android.o',
                 ],
               }],
               ['_type=="shared_library" or _type=="loadable_module"', {
-                'ldflags!': [
-                  '-Wl,--exclude-libs=ALL',
-                ],
                 'ldflags': [
                   '-Wl,-shared,-Bsymbolic',
                 ],
                 'conditions': [
                   ['android_webview_build==0', {
                     'ldflags': [
                       # crtbegin_so.o should be the last item in ldflags.
                       '<(android_ndk_lib)/crtbegin_so.o',
                     ],
                     'libraries': [
@@ skipping 1120 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }