First pass on intents options UI.

chrome/browser/resources/options/content_settings.html

Index: chrome/browser/resources/options/content_settings.html
diff --git a/chrome/browser/resources/options/content_settings.html b/chrome/browser/resources/options/content_settings.html
index 12af626583a999035e1656b5d3f4b7fb4e7bf9a8..3475e3589e2550327994a9795c59df7c02d5c19e 100644
--- a/chrome/browser/resources/options/content_settings.html
+++ b/chrome/browser/resources/options/content_settings.html
@@ -211,5 +211,28 @@
             i18n-content="manage_exceptions"></button>
       </div>
     </section>
+    <if expr="pp_ifdef('enable_web_intents')">
+      <section id="intents-section">
+        <h3 i18n-content="intentsTabLabel"></h3>
+        <div>
+          <div class="radio">
+            <label>
+              <input type="radio" name="intents" value="allow"
+                  class="intents-radio">
+              <span i18n-content="intentsAllow"></span>
+            </label>
+          </div>
+          <div class="radio">
+            <label>
+              <input type="radio" name="intents" value="block"
+                  class="intents-radio">
+              <span i18n-content="intentsBlock"></span>
+            </label>
+          </div>
+          <button id="manage-intents-button" contentType="intents"
+              i18n-content="manageIntents"></button>
+        </div>
+      </section>
+    </if>
   </div>
 </div>