<rdar://problem/10609417> Adopt USE_STAGING_INSTALL_PATH

Reviewed by David Kilzer.

Source/JavaScriptCore:

* Configurations/Base.xcconfig: Define NORMAL_JAVASCRIPTCORE_FRAMEWORKS_DIR, which contains
the path where JavaScriptCore is normally installed. Update JAVASCRIPTCORE_FRAMEWORKS_DIR
to point to the staged frameworks directory when USE_STAGING_INSTALL_PATH is set.
* Configurations/JavaScriptCore.xcconfig: Always set the framework's install name based on
the normal framework location. This prevents an incorrect install name from being used when
installing in to the staged frameworks directory.

Source/ThirdParty:

* gtest/xcode/Config/ProductionProject.xcconfig: Ensure that the staged frameworks path
is in the framework search path when USE_STAGING_INSTALL_PATH is set. Look for the WebCore
framework in the staged frameworks directory when USE_STAGING_INSTALL_PATH is set.

Source/WebCore:

* Configurations/WebCore.xcconfig: Define NORMAL_WEBCORE_FRAMEWORKS_DIR, which contains
the path where WebCore is normally installed. Update WEBCORE_FRAMEWORKS_DIR to point to
the staged frameworks directory when USE_STAGING_INSTALL_PATH is set. Define
NORMAL_PRODUCTION_FRAMEWORKS_DIR, which contains the path where our public frameworks
are normally installed. Update PRODUCTION_FRAMEWORKS_DIR to point to the staged frameworks
directory when USE_STAGING_INSTALL_PATH is set. Always set the framework's install name
based on the normal framework location. This prevents an incorrect install name from being
used when installing in to the staged frameworks directory. Look for our other frameworks
in the staged frameworks directory when USE_STAGING_INSTALL_PATH is set.

Source/WebKit/mac:

* Configurations/WebKit.xcconfig: Define NORMAL_WEBKIT_FRAMEWORKS_DIR, which contains
the path where WebKit is normally installed. Update WEBKIT_FRAMEWORKS_DIR to point to
the staged frameworks directory when USE_STAGING_INSTALL_PATH is set. Define
NORMAL_PRODUCTION_FRAMEWORKS_DIR, which contains the path where our public frameworks
are normally installed. Update PRODUCTION_FRAMEWORKS_DIR to point to the staged frameworks
directory when USE_STAGING_INSTALL_PATH is set. Always set the framework's install name
based on the normal framework location. This prevents an incorrect install name from being
used when installing in to the staged frameworks directory. Look for our other frameworks
in the staged frameworks directory when USE_STAGING_INSTALL_PATH is set. Update
WEBCORE_PRIVATE_HEADERS_DIR to find WebCore at the top level of the staged frameworks
directory when USE_STAGING_INSTALL_PATH is set, rather than finding it embedded inside of
WebKit.framework.

Source/WebKit2:

* Configurations/BaseTarget.xcconfig: Define NORMAL_WEBKIT2_FRAMEWORKS_DIR, which contains
the path where WebKit is normally installed. Update WEBKIT2_FRAMEWORKS_DIR to point to
the staged frameworks directory when USE_STAGING_INSTALL_PATH is set. Update
UMBRELLA_FRAMEWORKS_DIR so we can find WebCore at the top level of the staged frameworks
directory when USE_STAGING_INSTALL_PATH is set, rather than finding it embedded inside of
WebKit.framework.
* Configurations/PluginProcess.xcconfig: Set our install path based on WEBKIT2_FRAMEWORKS_DIR.
* Configurations/WebKit2.xcconfig: Set our install path based on WEBKIT2_FRAMEWORKS_DIR.
Always set the framework's install name based on the normal framework location. This prevents
an incorrect install name from being used when installing in to the staged frameworks directory.
* Configurations/WebProcess.xcconfig: Set our install path based on WEBKIT2_FRAMEWORKS_DIR.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@105942 268f45cc-cd09-0410-ab3c-d52691b4dbfc