Silence warning about missing runningboard entitlement for the UIProcess

https://bugs.webkit.org/show_bug.cgi?id=270214
rdar://123740093

Reviewed by Andy Estes.

Silence warning about missing runningboard entitlement for the UIProcess. Only
try and take the MediaPlayback process assertion on the UIProcess if it has the
proper entitlement.

* Source/WebKit/UIProcess/WebProcessPool.cpp:
(WebKit::WebProcessPool::updateAudibleMediaAssertions):
* Source/WebKit/UIProcess/WebProcessPool.h:

Canonical link: https://commits.webkit.org/275451@main

Source/WebKit/UIProcess/WebProcessPool.cpp

@@ -137,6 +137,7 @@
 #include <WebCore/HIDGamepadProvider.h>
 #include <WebCore/MultiGamepadProvider.h>
 #include <WebCore/PowerSourceNotifier.h>
+#include <wtf/cocoa/Entitlements.h>
 #include <wtf/cocoa/RuntimeApplicationChecksCocoa.h>
 #endif
 
@@ -2317,8 +2318,13 @@ void WebProcessPool::updateAudibleMediaAssertions()
         return;
 
     WEBPROCESSPOOL_RELEASE_LOG(ProcessSuspension, "updateAudibleMediaAssertions: The number of processes playing audible media is now greater than zero. Taking UI process assertion.");
+#if PLATFORM(COCOA)
+    bool shouldTakeUIProcessAssertion = WTF::processHasEntitlement("com.apple.runningboard.assertions.webkit"_s);
+#else
+    bool shouldTakeUIProcessAssertion = true;
+#endif
     m_audibleMediaActivity = AudibleMediaActivity {
-        ProcessAssertion::create(getCurrentProcessID(), "WebKit Media Playback"_s, ProcessAssertionType::MediaPlayback)
+        shouldTakeUIProcessAssertion ?  RefPtr<ProcessAssertion> { ProcessAssertion::create(getCurrentProcessID(), "WebKit Media Playback"_s, ProcessAssertionType::MediaPlayback) } : nullptr
 #if ENABLE(GPU_PROCESS)
         , gpuProcess() ? RefPtr<ProcessAssertion> { ProcessAssertion::create(*gpuProcess(), "WebKit Media Playback"_s, ProcessAssertionType::MediaPlayback) } : nullptr
 #endif

Source/WebKit/UIProcess/WebProcessPool.h

@@ -832,7 +832,7 @@ class WebProcessPool final
     WebProcessWithAudibleMediaCounter m_webProcessWithAudibleMediaCounter;
 
     struct AudibleMediaActivity {
-        Ref<ProcessAssertion> uiProcessMediaPlaybackAssertion;
+        RefPtr<ProcessAssertion> uiProcessMediaPlaybackAssertion;
 #if ENABLE(GPU_PROCESS)
         RefPtr<ProcessAssertion> gpuProcessMediaPlaybackAssertion;
 #endif