Define the storage API throttling constants in storage.json so that they are

chrome/common/extensions/docs/storage.html

Index: chrome/common/extensions/docs/storage.html
diff --git a/chrome/common/extensions/docs/storage.html b/chrome/common/extensions/docs/storage.html
index 5d7f6a69f1ba5b55658d9f6aaa3e3363811df3ca..9b300f673243c4e9522613730cee9fa0356e0c29 100644
--- a/chrome/common/extensions/docs/storage.html
+++ b/chrome/common/extensions/docs/storage.html
@@ -481,6 +481,48 @@ You can find examples that use this API on the
           <!-- OBJECT EVENT FIELDS -->
           <!-- FUNCTION PARAMETERS -->
         </div>
+              </div><div>
+                <div>
+          <dt>
+            <var>MAX_WRITE_OPERATIONS_PER_HOUR</var>
+              <em>
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span id="typeTemplate">
+                      <code>1,000</code>
+                    </span>
+                  )
+                </div>
+              </em>
+          </dt>
+          <dd>The maximum number of <code>set</code>, <code>remove</code>, or <code>clear</code> operations that can be performed each hour.</dd>
+          <!-- OBJECT PROPERTIES -->
+          <!-- OBJECT METHODS -->
+          <!-- OBJECT EVENT FIELDS -->
+          <!-- FUNCTION PARAMETERS -->
+        </div>
+              </div><div>
+                <div>
+          <dt>
+            <var>MAX_SUSTAINED_WRITE_OPERATIONS_PER_MINUTE</var>
+              <em>
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span id="typeTemplate">
+                      <code>10</code>
+                    </span>
+                  )
+                </div>
+              </em>
+          </dt>
+          <dd>The maximum number of <code>set</code>, <code>remove</code>, or <code>clear</code> operations that can be performed each minute, sustained over 10 minutes.</dd>
+          <!-- OBJECT PROPERTIES -->
+          <!-- OBJECT METHODS -->
+          <!-- OBJECT EVENT FIELDS -->
+          <!-- FUNCTION PARAMETERS -->
+        </div>
               </div>
             </dl>
           </dd>