Link with libcc's libc++ on Linux

common.gypi

@@ -182,7 +182,10 @@
               '-Wl,--no-whole-archive',
             ],
           }, {
-            'libraries': [ '<@(libchromiumcontent_v8_libraries)' ],
+            'libraries': [
+              '<@(libchromiumcontent_v8_libraries)',
+              '<(libchromiumcontent_dir)/libc++.so',
+            ],
           }],
         ],
       }],
@@ -243,6 +246,22 @@
           }],  # OS=="win"
         ],
       }],
+      ['OS=="linux" and _target_name in ["dump_syms"]', {
+        'conditions': [
+          ['libchromiumcontent_component==0', {
+            'libraries': [
+              '<(libchromiumcontent_dir)/libc++.a',
+            ],
+          }, {
+            'libraries': [
+              '<(libchromiumcontent_dir)/libc++.so',
+            ],
+            'ldflags': [
+              '-Wl,-rpath=\$$ORIGIN',
+            ],
+          }],
+        ],
+      }]
     ],
     'msvs_cygwin_shell': 0, # Strangely setting it to 1 would make building under cygwin fail.
     'msvs_disabled_warnings': [

toolchain.gypi

@@ -110,9 +110,6 @@
         ['CXX.host', '$(CXX)'],
       ],
       'target_defaults': {
-        'cflags_cc': [
-          '-std=c++14',
-        ],
         'xcode_settings': {
           'CC': '<(make_clang_dir)/bin/clang',
           'LDPLUSPLUS': '<(make_clang_dir)/bin/clang++',
@@ -125,13 +122,24 @@
           'CLANG_CXX_LANGUAGE_STANDARD': 'c++14',  # -std=c++14
         },
         'target_conditions': [
-          ['_type in ["executable", "shared_library"]', {
+          ['OS=="mac" and _type in ["executable", "shared_library"]', {
             'xcode_settings': {
               # On some machines setting CLANG_CXX_LIBRARY doesn't work for
               # linker.
               'OTHER_LDFLAGS': [ '-stdlib=libc++' ],
             },
           }],
+          ['OS=="linux"', {
+            'cflags_cc': [
+              '-std=gnu++14',
+              '-nostdinc++',
+              '-isystem<(libchromiumcontent_src_dir)/buildtools/third_party/libc++/trunk/include',
+              '-isystem<(libchromiumcontent_src_dir)/buildtools/third_party/libc++abi/trunk/include',
+            ],
+            'ldflags': [
+              '-nostdlib++',
+            ],
+          }],
         ],
       },
     }],  # clang==1
@@ -145,7 +153,7 @@
       ],
       'target_defaults': {
         'cflags_cc': [
-          '-std=c++11',
+          '-std=gnu++14',
         ],
       },
     }],

vendor/libchromiumcontent

@@ -1 +1 @@
-Subproject commit f8ff573e503dea08f8ef05a2773bf3b0aa8dfdb1
+Subproject commit 5964d8fe1ef813028d53c6496857ca84d9d91fd3