Support PNG and quality control in chrome.tabs.captureVisibleTab().

chrome/common/extensions/docs/tabs.html

Index: chrome/common/extensions/docs/tabs.html
diff --git a/chrome/common/extensions/docs/tabs.html b/chrome/common/extensions/docs/tabs.html
index fa722bc03cce84146f3ecb6ad3e6a955b6874cf1..faa84a5d2d53902f76652f56b6053a31b81eace0 100644
--- a/chrome/common/extensions/docs/tabs.html
+++ b/chrome/common/extensions/docs/tabs.html
@@ -369,7 +369,8 @@ For other examples and for help in viewing the source code, see
               <div class="summary"><span style="display: none; ">void</span>
                   <!-- Note: intentionally longer 80 columns -->
                   <span>chrome.tabs.captureVisibleTab</span>(<span class="optional"><span style="display: none; ">, </span><span>integer</span>
-                      <var><span>windowId</span></var></span><span class="null"><span>, </span><span>function</span>
+                      <var><span>windowId</span></var></span><span class="optional"><span>, </span><span>object</span>
+                      <var><span>options</span></var></span><span class="null"><span>, </span><span>function</span>
                       <var><span>callback</span></var></span>)</div>
 
               <div class="description">
@@ -423,6 +424,126 @@ For other examples and for help in viewing the source code, see
                   </div><div>
                     <div>
           <dt>
+            <var>options</var>
+              <em>
+
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span class="optional">optional</span>
+                    <span id="typeTemplate">
+                      <span style="display: none; ">
+                        <a> Type</a>
+                      </span>
+                      <span>
+                        <span style="display: none; ">
+                          array of <span><span></span></span>
+                        </span>
+                        <span>object</span>
+                      </span>
+                    </span>
+                  )
+                </div>
+
+              </em>
+          </dt>
+          <dd class="todo" style="display: none; ">
+            Undocumented.
+          </dd>
+          <dd>Set parameters of image capture, such as the format of the resulting image.  This parameter was added in version 5.0 .  Earlier versions of chrome will throw an exception unless you omit it.</dd>
+
+          <!-- OBJECT PROPERTIES -->
+          <dd>
+            <dl>
+              <div>
+                <div>
+          <dt>
+            <var>format</var>
+              <em>
+
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span class="optional">optional</span>
+                    <span id="typeTemplate">
+                      <span style="display: none; ">
+                        <a> Type</a>
+                      </span>
+                      <span>
+                        <span style="display: none; ">
+                          array of <span><span></span></span>
+                        </span>
+                        <span>string</span>
+                      </span>
+                    </span>
+                  )
+                </div>
+
+              </em>
+          </dt>
+          <dd class="todo" style="display: none; ">
+            Undocumented.
+          </dd>
+          <dd>The format of the resulting image.  Default is jpeg.</dd>
+
+          <!-- OBJECT PROPERTIES -->
+          <dd style="display: none; ">
+            <dl>
+              <div>
+                <div>
+                </div>
+              </div>
+            </dl>
+          </dd>
+        </div>
+              </div><div>
+                <div>
+          <dt>
+            <var>quality</var>
+              <em>
+
+                <!-- TYPE -->
+                <div style="display:inline">
+                  (
+                    <span class="optional">optional</span>
+                    <span id="typeTemplate">
+                      <span style="display: none; ">
+                        <a> Type</a>
+                      </span>
+                      <span>
+                        <span style="display: none; ">
+                          array of <span><span></span></span>
+                        </span>
+                        <span>integer</span>
+                      </span>
+                    </span>
+                  )
+                </div>
+
+              </em>
+          </dt>
+          <dd class="todo" style="display: none; ">
+            Undocumented.
+          </dd>
+          <dd>When format is 'jpeg', controls the quality of the resulting image.  This value is ignored for PNG images.  As quality is decreased, the resulting image will have more visual artifacts, and the number of bytes needed to store it will decrease.</dd>
+
+          <!-- OBJECT PROPERTIES -->
+          <dd style="display: none; ">
+            <dl>
+              <div>
+                <div>
+                </div>
+              </div>
+            </dl>
+          </dd>
+        </div>
+              </div>
+            </dl>
+          </dd>
+        </div>
+                  </div><div>
+                    <div>
+          <dt>
             <var>callback</var>
               <em>
 
@@ -520,7 +641,7 @@ For other examples and for help in viewing the source code, see
           <dd class="todo" style="display: none; ">
             Undocumented.
           </dd>
-          <dd>A data URL of a JPEG encoding of the visible area of the captured tab. May be assigned to the 'src' property of an HTML Image element for display.</dd>
+          <dd>A data URL which encodes an image of the visible area of the captured tab. May be assigned to the 'src' property of an HTML Image element for display.</dd>
 
           <!-- OBJECT PROPERTIES -->
           <dd style="display: none; ">