Reviewed by Dan Bernstein.

        Plug-in hosting WebProcess instances appear in Activity Monitor as WebProcess
        https://bugs.webkit.org/show_bug.cgi?id=52635
        <rdar://problem/8731337>

        * PluginProcess/PluginProcess.cpp:
        (WebKit::PluginProcess::initialize):
        Call platformInitialize.

        * PluginProcess/PluginProcess.h:
        Add platformInitialize.

        * PluginProcess/mac/PluginProcessMac.mm:
        (WebKit::PluginProcess::platformInitialize):
        Set the compositing render server port and the visible application name.

        * Shared/Plugins/PluginProcessCreationParameters.cpp:
        (WebKit::PluginProcessCreationParameters::encode):
        (WebKit::PluginProcessCreationParameters::decode):
        Encode/decode the parent process name.

        * Shared/Plugins/PluginProcessCreationParameters.h:
        Add parentProcessName.

        * Shared/WebProcessCreationParameters.cpp:
        (WebKit::WebProcessCreationParameters::encode):
        (WebKit::WebProcessCreationParameters::decode):
        Encode/decode the parent process name.

        * Shared/WebProcessCreationParameters.h:
        Add parentProcessName.

        * UIProcess/Launcher/mac/ProcessLauncherMac.mm:
        (WebKit::ProcessLauncher::launchProcess):
        Don't pass the parent process name here.

        * UIProcess/Plugins/mac/PluginProcessProxyMac.mm:
        (WebKit::PluginProcessProxy::platformInitializePluginProcess):
        Set the visible name.

        * UIProcess/mac/WebContextMac.mm:
        (WebKit::WebContext::platformInitializeWebProcess):
        Pass along the parent process name.

        * WebProcess/mac/WebProcessMac.mm:
        (WebKit::WebProcess::platformInitializeWebProcess):
        Set the visible name.

        * WebProcess/mac/WebProcessMainMac.mm:
        (WebKit::WebProcessMain):
        Don't set the visible name here. It's done in platformInitializeWebProcess.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@76034 268f45cc-cd09-0410-ab3c-d52691b4dbfc