Make WebCore and WebKit2 work with update-webkit-localizable-strings.

Make WebCore and WebKit2 work with update-webkit-localizable-strings.

Source/WebCore: Update WebCore Localizable.strings to contain WebCore, WebKit/mac and WebKit2 strings.

https://webkit.org/b/57354

Reviewed by Sam Weinig.

* English.lproj/Localizable.strings: Updated.
* StringsNotToBeLocalized.txt: Removed. To hard to maintain in WebCore.
* platform/network/cf/LoaderRunLoopCF.h: Remove a single quote in an #error so
extract-localizable-strings does not complain about unbalanced single quotes.

Source/WebKit: Update WebKit Localizable.strings to only contain WebKit/win strings.

https://webkit.org/b/57354

Reviewed by Sam Weinig.

* English.lproj/Localizable.strings: Updated.

Source/WebKit2: Make WebKit2 work with update-webkit-localizable-strings.

https://webkit.org/b/57354

Reviewed by Sam Weinig.

* PluginProcess/mac/PluginProcessMac.mm: Remove UI_STRING macro. Use WebLocalizableStrings.h.
* Shared/WebLocalizableStrings.h: Added.
* UIProcess/API/mac/WKView.mm: Remove UI_STRING macro. Use WebLocalizableStrings.h.
* UIProcess/mac/WebInspectorProxyMac.mm:
(WebKit::WebInspectorProxy::platformInspectedURLChanged): Use UI_STRING. Remove FIXME.
* WebProcess/WebCoreSupport/WebPlatformStrategies.cpp: Remove UI_STRING macros.
Use WebLocalizableStrings.h.
* WebProcess/WebCoreSupport/mac/WebErrorsMac.mm:
(registerErrors): Remove UI_STRING macro. Use WebLocalizableStrings.h.
* WebProcess/mac/WebProcessMac.mm:
(WebKit::WebProcess::platformInitializeWebProcess): Use UI_STRING. Remove FIXME.

* GNUmakefile.am: Added Shared/WebLocalizableStrings.h.
* WebKit2.pro: Ditto.
* WebKit2.xcodeproj/project.pbxproj: Ditto.
* win/WebKit2.vcproj: Ditto.

Tools: Update update-webkit-localizable-strings to understand that WebKit and
WebKit2 strings go in WebCore.

Also make extract-localizable-strings optionally use an exclude file. No individual
warnings are produced about unlocalized strings when there is no exclude file. This
is needed for WebCore, since there are too many bare strings.

https://webkit.org/b/57354

Reviewed by Sam Weinig.

* Scripts/extract-localizable-strings: Support "-" to mean no exclude file.
* Scripts/update-webkit-localizable-strings: Update paths to scan WebCore and WebKit2.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@82308 268f45cc-cd09-0410-ab3c-d52691b4dbfc