Make the application PID available to WebCore
https://bugs.webkit.org/show_bug.cgi?id=172133

Reviewed by Andreas Kling.

Source/WebCore:

* CMakeLists.txt:
* PlatformMac.cmake:
* WebCore.xcodeproj/project.pbxproj:
* platform/RuntimeApplicationChecks.cpp: Added.
(WebCore::presentingApplicationPIDOverride):
(WebCore::presentingApplicationPID): Returns the override PID if set, or getCurrentProcessID()
otherwise.
(WebCore::setPresentingApplicationPID):
* platform/RuntimeApplicationChecks.h:
* platform/cocoa/RuntimeApplicationChecksCocoa.mm: Renamed from Source/WebCore/platform/RuntimeApplicationChecks.mm.

Source/WebKit2:

Added uiProcessPID to Web and Networking process creation parameters. The UI process
initializes these to getpid(), and the child processes call WebCore::setPresentingApplicationPID()
at initialization time.

This replaces presenterApplicationPid.

* NetworkProcess/NetworkProcess.cpp:
(WebKit::NetworkProcess::initializeNetworkProcess):
* NetworkProcess/NetworkProcessCreationParameters.cpp:
(WebKit::NetworkProcessCreationParameters::encode):
(WebKit::NetworkProcessCreationParameters::decode):
* NetworkProcess/NetworkProcessCreationParameters.h:
* Shared/WebProcessCreationParameters.cpp:
(WebKit::WebProcessCreationParameters::encode):
(WebKit::WebProcessCreationParameters::decode):
* Shared/WebProcessCreationParameters.h:
* UIProcess/Cocoa/WebProcessPoolCocoa.mm:
(WebKit::WebProcessPool::platformInitializeWebProcess):
* UIProcess/WebProcessPool.cpp:
(WebKit::WebProcessPool::ensureNetworkProcess):
(WebKit::WebProcessPool::createNewWebProcess):
* WebProcess/WebPage/mac/WebPageMac.mm:
(WebKit::WebPage::platformInitialize):
* WebProcess/WebProcess.cpp:
(WebKit::WebProcess::initializeWebProcess):
* WebProcess/WebProcess.h:
(WebKit::WebProcess::presenterApplicationPid): Deleted.
* WebProcess/cocoa/WebProcessCocoa.mm:
(WebKit::WebProcess::platformInitializeWebProcess):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@216903 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/WebCore/platform/RuntimeApplicationChecks.h b/Source/WebCore/platform/RuntimeApplicationChecks.h
index 0e42b0c..ab88e67 100644
--- a/Source/WebCore/platform/RuntimeApplicationChecks.h
+++ b/Source/WebCore/platform/RuntimeApplicationChecks.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009, 2011 Apple Inc. All rights reserved.
+ * Copyright (C) 2009-2017 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,14 +23,17 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef RuntimeApplicationChecks_h
-#define RuntimeApplicationChecks_h
+#pragma once
 
-#if PLATFORM(COCOA)
 #include <wtf/Forward.h>
 
 namespace WebCore {
 
+WEBCORE_EXPORT void setPresentingApplicationPID(int);
+WEBCORE_EXPORT int presentingApplicationPID();
+
+#if PLATFORM(COCOA)
+
 WEBCORE_EXPORT void setApplicationBundleIdentifier(const String&);
 String applicationBundleIdentifier();
 
@@ -81,8 +84,6 @@
 
 #endif // PLATFORM(IOS)
 
-} // namespace WebCore
-
 #endif // PLATFORM(COCOA)
 
-#endif // RuntimeApplicationChecks_h
+} // namespace WebCore