Revert 285458 "Disable exceptions on Windows in all builds (take 3)"

trunk/src/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 5098 matching lines @@
           '_WIN32_WINNT=0x0602',
           'WINVER=0x0602',
           'WIN32',
           '_WINDOWS',
           'NOMINMAX',
           'PSAPI_VERSION=1',
           '_CRT_RAND_S',
           'CERT_CHAIN_PARA_HAS_EXTRA_FIELDS',
           'WIN32_LEAN_AND_MEAN',
           '_ATL_NO_OPENGL',
-          # _HAS_EXCEPTIONS must match ExceptionHandling in msvs_settings.
-          '_HAS_EXCEPTIONS=0',
         ],
         'conditions': [
           ['buildtype=="Official"', {
               # In official builds, targets can self-select an optimization
               # level by defining a variable named 'optimize', and setting it
               # to one of
               # - "size", optimizes for minimal code size - the default.
               # - "speed", optimizes for speed over code size.
               # - "max", whole program optimization and link-time code
               #   generation. This is very expensive and should be used
@@ skipping 47 matching lines @@
                         'FavorSizeOrSpeed': '1',
                         # This implies link time code generation.
                         'WholeProgramOptimization': 'true',
                       },
                     },
                   },
                 ],
               ],
             },
           ],
+          ['component=="static_library"', {
+            'defines': [
+              '_HAS_EXCEPTIONS=0',
+            ],
+          }],
           ['secure_atl', {
             'defines': [
               '_SECURE_ATL',
             ],
           }],
           ['msvs_express', {
             'configurations': {
               'x86_Base': {
                 'msvs_settings': {
                   'VCLinkerTool': {
@@ skipping 62 matching lines @@
         'msvs_settings': {
           'VCCLCompilerTool': {
             'AdditionalOptions': ['/MP'],
             'MinimalRebuild': 'false',
             'BufferSecurityCheck': 'true',
             'EnableFunctionLevelLinking': 'true',
             'RuntimeTypeInfo': 'false',
             'WarningLevel': '4',
             'WarnAsError': 'true',
             'DebugInformationFormat': '3',
-            # ExceptionHandling must match _HAS_EXCEPTIONS above.
-            'ExceptionHandling': '0',
+            'conditions': [
+              ['component=="shared_library"', {
+                'ExceptionHandling': '1',  # /EHsc
+              }, {
+                'ExceptionHandling': '0',
+              }],
+            ],
           },
           'VCLibrarianTool': {
             'AdditionalOptions': ['/ignore:4221'],
             'AdditionalLibraryDirectories': [
               '<(windows_sdk_path)/Lib/win8/um/x86',
             ],
           },
           'VCLinkerTool': {
             'AdditionalDependencies': [
               'wininet.lib',
@@ skipping 340 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',
   },
 }