Make the extension API docs point out the minimum version that supports an API call.

chrome/common/extensions/docs/experimental.omnibox.html

Index: chrome/common/extensions/docs/experimental.omnibox.html
diff --git a/chrome/common/extensions/docs/experimental.omnibox.html b/chrome/common/extensions/docs/experimental.omnibox.html
index c5c6b2d445f29e18dc40d3df291cf319b78b67a3..a0fc7cc83e89ae2b084314673cec3e0d83960654 100644
--- a/chrome/common/extensions/docs/experimental.omnibox.html
+++ b/chrome/common/extensions/docs/experimental.omnibox.html
@@ -59,6 +59,15 @@
           <dd>
             Description of this parameter from the json schema.
           </dd>
+          <dd>
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd>
@@ -357,6 +366,13 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
                   </div>
                 </div>
 
+                <!-- MIN_VERSION -->
+                <p>
+                  This function was added in version <b><span></span></b>.
+                  If you require this function, the manifest key
+                  <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+                  can ensure that your extension won't be run in an earlier browser version.
+                </p>
               </div> <!-- /description -->
 
             </div><div class="apiItem">
@@ -409,6 +425,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -456,6 +481,13 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
                   </div>
                 </div>
 
+                <!-- MIN_VERSION -->
+                <p style="display: none; ">
+                  This function was added in version <b><span></span></b>.
+                  If you require this function, the manifest key
+                  <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+                  can ensure that your extension won't be run in an earlier browser version.
+                </p>
               </div> <!-- /description -->
 
             </div><div class="apiItem">
@@ -508,6 +540,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -555,6 +596,13 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
                   </div>
                 </div>
 
+                <!-- MIN_VERSION -->
+                <p style="display: none; ">
+                  This function was added in version <b><span></span></b>.
+                  If you require this function, the manifest key
+                  <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+                  can ensure that your extension won't be run in an earlier browser version.
+                </p>
               </div> <!-- /description -->
 
             </div><div class="apiItem">
@@ -607,6 +655,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -654,6 +711,13 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
                   </div>
                 </div>
 
+                <!-- MIN_VERSION -->
+                <p style="display: none; ">
+                  This function was added in version <b><span></span></b>.
+                  If you require this function, the manifest key
+                  <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+                  can ensure that your extension won't be run in an earlier browser version.
+                </p>
               </div> <!-- /description -->
 
             </div>  <!-- /apiItem -->
@@ -716,6 +780,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -759,6 +832,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
             Undocumented.
           </dd>
           <dd>A callback passed to the onInputChanged event used for sending suggestions back to the browser.</dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -825,6 +907,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -886,6 +977,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
             Undocumented.
           </dd>
           <dd>A suggest result.</dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd>
@@ -922,6 +1022,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
             Undocumented.
           </dd>
           <dd>The text that is put into the URL bar, and that is sent to the extension when the user chooses this entry.</dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -965,6 +1074,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
             Undocumented.
           </dd>
           <dd>The text that is displayed in the URL dropdown. Can optionally be stylized by the descriptionStyles parameter.</dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">
@@ -1021,6 +1139,15 @@ see the <a href="experimental.html">chrome.experimental.* APIs</a> page.
           <dd style="display: none; ">
             Description of this parameter from the json schema.
           </dd>
+          <dd style="display: none; ">
+            This parameter was added in version
+            <b><span></span></b>.
+            You must omit this parameter in earlier versions,
+            and you may omit it in any version.  If you require this
+            parameter, the manifest key
+            <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a>
+            can ensure that your extension won't be run in an earlier browser version.
+          </dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">