Disallow theme colors with luminance > 0.94

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index 414dcbecd1fb554637f68483cebf059444b0a323..d59029e6b1cd600a6c2a1dfb844f0e22705cbabb 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -84,6 +84,7 @@ import org.chromium.chrome.browser.tabmodel.TabModel.TabSelectionType;
 import org.chromium.chrome.browser.tabmodel.TabModelImpl;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
 import org.chromium.chrome.browser.tabmodel.TabReparentingParams;
+import org.chromium.chrome.browser.util.ColorUtils;
 import org.chromium.components.dom_distiller.core.DomDistillerUrlUtils;
 import org.chromium.components.navigation_interception.InterceptNavigationDelegate;
 import org.chromium.components.security_state.ConnectionSecurityLevel;
@@ -1085,6 +1086,7 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
         // corresponds to the didChangeThemeColor in WebContentsObserver.
         if (getWebContents() != null && didWebContentsThemeColorChange) {
             themeColor = getWebContents().getThemeColor();
+            if (themeColor != 0 && !ColorUtils.isValidThemeColor(themeColor)) themeColor = 0;
         }
 
         // Do not apply the theme color if there are any security issues on the page.