Add a win_force_console=1 GYP flag that makes chrome.exe and nacl64.exe console applications

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 1199 matching lines @@
     'chrome_pgo_phase%': '0',
 
     # The default settings for third party code for treating
     # warnings-as-errors. Ideally, this would not be required, however there
     # is some third party code that takes a long time to fix/roll. So, this
     # flag allows us to have warnings as errors in general to prevent
     # regressions in most modules, while working on the bits that are
     # remaining.
     'win_third_party_warn_as_error%': 'true',
 
+    # Force /SUBSYSTEM:CONSOLE for some executables that use /SUBSYSTEM:WINDOWS
+    # by default. This should simplify debugging since windowed applications
+    # don't play well with stdout/stderr.
+    'win_force_console%': '0',

[scottmg, 2014/06/05 18:17:42]

could you make this win_force_console_subsystem to match the define please?

+
     # Clang stuff.
     'clang%': '<(clang)',
     'make_clang_dir%': 'third_party/llvm-build/Release+Asserts',
 
     # Control which version of clang to use when building for iOS.  If set to
     # '1', uses the version of clang that ships with Xcode.  If set to '0', uses
     # the version of clang that ships with the Chromium source.  This variable
     # is automatically set to '1' when using the Xcode generator.
     'clang_xcode%': 0,
 
@@ skipping 591 matching lines @@
             'winsdk_arch%': '<(target_arch)',
           }],
           ['component=="shared_library"', {
             'win_use_allocator_shim%': 0,
           },{
             # Turn on multiple dll by default on Windows when in static_library.
             'chrome_multiple_dll%': 1,
           }],
           ['asan==1', {
             'win_use_allocator_shim%': 0,
+            # The AddressSanitizer build should be a console program
+            # as it prints out stuff on stderr.
+            'win_force_console%': '1',
           }],
           ['component=="shared_library" and "<(GENERATOR)"=="ninja"', {
             # Only enabled by default for ninja because it's buggy in VS.
             # Not enabled for component=static_library because some targets
             # are too large and the toolchain fails due to the size of the
             # .obj files.
             'incremental_chrome_dll%': 1,
           }],
           # Don't do incremental linking for large modules on 32-bit or when
           # component=static_library as the toolchain fails due to the size of
@@ skipping 764 matching lines @@
           # This define is required to pull in the new Win8 interfaces from
           # system headers like ShObjIdl.h.
           'NTDDI_VERSION=0x06020000',
           # This is required for ATL to use XP-safe versions of its functions.
           '_USING_V110_SDK71_',
         ],
         'include_dirs': [
           '<(DEPTH)/third_party/wtl/include',
         ],
         'conditions': [
+          ['win_force_console!=0', {
+            'defines': [
+              "FORCE_CONSOLE_SUBSYSTEM",
+            ],
+          }],
           ['win_z7!=0', {
             'msvs_settings': {
               # Generates debug info when win_z7=1
               # even if fastbuild=1 (that makes GenerateDebugInformation false).
               'VCLinkerTool': {
                 'GenerateDebugInformation': 'true',
               },
               'VCCLCompilerTool': {
                 'DebugInformationFormat': '1',
               }
@@ skipping 2804 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',
   },
 }