Remove temporary Media Session interceptor and Video Event Log diagnostics

Clean up the exploratory Disney+ diagnostics now that the Shadow DOM
timeline/seek integration is in place:

- Remove Proposal 1 (Media Session interceptor): the background.js
  interceptor injection and the content.js message listener capturing
  __koalaMediaSessionCapture, plus the now-unused mediaSessionPosition
  reporting in content.js and popup.js.
- Remove Proposal 3 (Video Event Log): videoEventsLog, logVideoEvent(),
  the per-video event logging listeners, and the popup.html/popup.js UI.
- Keep Proposal 2 (DOM timestamp scraper) for ongoing diagnostics.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

extension/background.js

@@ -1654,42 +1654,6 @@ async function devRemoteToolsAllowed() {
     return data.username === 'KoalaDev';
 }
 
-const mediaSessionInterceptorHosts = [
-    'disneyplus.com'
-];
-
-function shouldInstallMediaSessionInterceptor(url) {
-    try {
-        const host = new URL(url).hostname.toLowerCase();
-        return mediaSessionInterceptorHosts.some(h => host === h || host.endsWith('.' + h));
-    } catch (_e) {
-        return false;
-    }
-}
-
-function installMediaSessionInterceptor() {
-    if (window.__koalaMediaSessionInterceptorInstalled) return;
-    window.__koalaMediaSessionInterceptorInstalled = true;
-    if (!navigator.mediaSession || typeof navigator.mediaSession.setPositionState !== 'function') return;
-
-    const originalSet = navigator.mediaSession.setPositionState;
-    navigator.mediaSession.setPositionState = function(state) {
-        try {
-            window.postMessage({
-                __koalaMediaSessionCapture: 1,
-                state: {
-                    duration: state?.duration,
-                    playbackRate: state?.playbackRate,
-                    position: state?.position
-                }
-            }, '*');
-        } catch (_e) {
-            // Suppress errors to not interfere with player
-        }
-        return originalSet.apply(navigator.mediaSession, arguments);
-    };
-}
-
 function shouldUsePageApiSeek(url) {
     return typeof globalThis.koalaFindPageApiSeekProvider === 'function' &&
         !!globalThis.koalaFindPageApiSeekProvider(url);
@@ -1733,12 +1697,10 @@ function setPageApiSeekEnabled(enabled) {
 async function injectContentScript(tabId) {
     let needsPageApiSeek = false;
     let pageApiSeekReady = false;
-    let isMediaSessionCapable = false;
     try {
         const tab = await chrome.tabs.get(tabId);
         const url = tab?.url || '';
         needsPageApiSeek = shouldUsePageApiSeek(url);
-        isMediaSessionCapable = shouldInstallMediaSessionInterceptor(url);
     } catch (_e) {
         // Fall through to the generic content script injection.
     }
@@ -1761,18 +1723,6 @@ async function injectContentScript(tabId) {
         }
     }
 
-    if (isMediaSessionCapable) {
-        try {
-            await chrome.scripting.executeScript({
-                target: { tabId },
-                world: 'MAIN',
-                func: installMediaSessionInterceptor
-            });
-        } catch (err) {
-            addLog(`Media Session interceptor injection failed: ${err.message}`, 'warn');
-        }
-    }
-
     await chrome.scripting.executeScript({
         target: { tabId },
         files: ['page-api-seek-overrides.js']

extension/content.js

@@ -62,7 +62,6 @@
 
     // Suppresses native event reporting after a programmatic action.
 
-    // Each entry is a per-type timer (key = 'playing'|'paused'|'seek').
     // Each entry is a per-type timer (key = 'playing'|'paused'|'seek').
 
     // While a timer exists, matching native events are consumed and not relayed.
@@ -1445,9 +1444,7 @@
 
     function applyAudioSettings(videoEl, settings) {
 
-        const mergedSettings = mergeAudioSettings(settings);
         const mergedSettings = mergeAudioSettings(settings);
-        if (!mergedSettings.enabled || !mergedSettings.compressor?.enabled) {
 
         if (!mergedSettings.enabled || !mergedSettings.compressor?.enabled) {
 
@@ -1459,9 +1456,7 @@
 
 
 
-        if (!chain) return;
         const chain = setupAudioChain(videoEl);
-
 
         if (!chain) return;
 
@@ -1752,21 +1747,6 @@
             checkAndReportLobbyReady(expectedTitle);
 
         }, 2000);
-
-
-
-    function stopLobbyPoll() {
-
-        _pendingLobbyTitle = null;
-
-        if (lobbyPollTimer) {
-
-            clearInterval(lobbyPollTimer);
-
-            lobbyPollTimer = null;
-
-        }
-
 
     }
 
@@ -1782,14 +1762,6 @@
 
             clearInterval(lobbyPollTimer);
 
-            }
-        ];
-    }
-
-    function getActivePlayerActionFix() {
-        return getPlayerActionFixes().find(fix => matchesPlayerUrls(fix.urls)) || null;
-    }
-
             lobbyPollTimer = null;
 
         }
@@ -1947,14 +1919,6 @@
     }
 
 
-            if (video) applyAudioSettings(video, _audioSettings);
-
-            sendResponse({ ok: true });
-
-            return true;
-
-        }
-
 
     // Listen for commands from background.js
 

extension/popup.html

@@ -706,12 +706,6 @@
                 No timestamps scraped.
             </div>
         </div>
-        <div style="margin-top: 15px; margin-bottom:15px;">
-            <label style="font-size:10px; font-weight:700; text-transform:uppercase; letter-spacing:0.5px;">Video Event Log</label>
-            <div class="info-card" id="devtoolsVideoEventLogList" style="font-size:10px; max-height:150px; overflow-y:auto; font-family:monospace; line-height:1.2; padding:6px; background:rgba(0,0,0,0.2); white-space:pre-wrap; border: 1px solid #334155;">
-                No events logged.
-            </div>
-        </div>
         <div style="font-size:10px; color:var(--text-muted); text-align:center; margin-top:10px; opacity:0.7;">
             Build: <span id="buildIdentifier">__BUILD_TIMESTAMP__</span>
         </div>

extension/popup.js

@@ -2283,10 +2283,6 @@ function refreshDebugInfo() {
                 if (state.nativeCurrentTime != null || state.nativeDuration != null) {
                     addField('Native Time', `${state.nativeCurrentTime ?? '?'}s / ${state.nativeDuration ?? '?'}s`);
                 }
-                if (state.mediaSessionPosition) {
-                    const pos = state.mediaSessionPosition;
-                    addField('MediaSession Captured', `${pos.position ?? '?'}s / ${pos.duration ?? '?'}s (@ ${pos.playbackRate ?? 1}x)`, '#a855f7');
-                }
                 if (state.siteQuirk) {
                     const quirk = state.siteQuirk;
                     const label = quirk.name || quirk.key || 'Site';
@@ -2297,17 +2293,11 @@ function refreshDebugInfo() {
                     if (buttons) addField(`${label} Buttons`, buttons);
                 }
                 const domScraperEl = document.getElementById('devtoolsDomScraperList');
-                const eventLogEl = document.getElementById('devtoolsVideoEventLogList');
                 if (domScraperEl && state.scrapedTimestamps) {
-                    domScraperEl.textContent = state.scrapedTimestamps.length > 0 
-                        ? state.scrapedTimestamps.join('\n') 
+                    domScraperEl.textContent = state.scrapedTimestamps.length > 0
+                        ? state.scrapedTimestamps.join('\n')
                         : 'No timestamps scraped.';
                 }
-                if (eventLogEl && state.videoEventsLog) {
-                    eventLogEl.textContent = state.videoEventsLog.length > 0 
-                        ? state.videoEventsLog.join('\n') 
-                        : 'No events logged.';
-                }
 
                 addSection('Properties');
                 addField('Seeking', String(state.seeking));