Remove web/{android, gtk, win}

Source/web/web.gyp

Index: Source/web/web.gyp
diff --git a/Source/web/web.gyp b/Source/web/web.gyp
index 1529ee002fdd201c0786a3706b73570bf16b6486..3176dc7244766137bfee8661a7638f96aca51a10 100644
--- a/Source/web/web.gyp
+++ b/Source/web/web.gyp
@@ -174,6 +174,11 @@
                     'include_dirs': [
                         '../../public/web/gtk',
                     ],
+                    'sources/': [
+                        ['exclude', 'WebInputEventFactory.mm$'],
+                        ['exclude', 'WebInputEventFactoryAndroid.cpp$'],
+                        ['exclude', 'WebInputEventFactoryWin.cpp$'],
+                    ],
                 }, { # else: toolkit_uses_gtk != 1
                     'sources/': [
                         ['exclude', 'gtk/'],
@@ -184,6 +189,11 @@
                         '../../public/web/android',
                         '../../public/web/linux', # We need linux/WebFontRendering.h on Android.
                     ],
+                    'sources/': [
+                        ['exclude', 'WebInputEventFactory.mm$'],
+                        ['exclude', 'WebInputEventFactoryGtk.cpp$'],
+                        ['exclude', 'WebInputEventFactoryWin.cpp$'],
+                    ],
                 }, { # else: OS!="android"
                     'sources/': [
                         ['exclude', 'android/'],
@@ -193,6 +203,11 @@
                     'include_dirs': [
                         '../../public/web/mac',
                     ],
+                    'sources/': [
+                        ['exclude', 'WebInputEventFactoryAndroid.cpp$'],
+                        ['exclude', 'WebInputEventFactoryGtk.cpp$'],
+                        ['exclude', 'WebInputEventFactoryWin.cpp$'],
+                    ],
                     'link_settings': {
                         'libraries': [
                             '$(SDKROOT)/System/Library/Frameworks/Accelerate.framework',
@@ -208,9 +223,14 @@
                     'include_dirs': [
                         '../../public/web/win',
                     ],
+                    'sources/': [
+                        ['exclude', 'WebInputEventFactory.mm$'],
+                        ['exclude', 'WebInputEventFactoryAndroid.cpp$'],
+                        ['exclude', 'WebInputEventFactoryGtk.cpp$'],
+                    ],
                 }, { # else: OS!="win"
                     'sources/': [
-                        ['exclude', 'win/']
+                        ['exclude', 'win/'],
                     ],
                     'variables': {
                         # FIXME: Turn on warnings on Windows.