Added RenderView.DocumentHasImages query method

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index e8cc8a160419fcd65ef3a0039e2eb531fc675679..0532d2065f05c2d5beab90fe3f4a79e0fd427f90 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -965,6 +965,7 @@ bool RenderViewImpl::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(ViewMsg_EnableViewSourceMode, OnEnableViewSourceMode)
     IPC_MESSAGE_HANDLER(JavaBridgeMsg_Init, OnJavaBridgeInit)
     IPC_MESSAGE_HANDLER(ViewMsg_SetAccessibilityMode, OnSetAccessibilityMode)
+    IPC_MESSAGE_HANDLER(ViewMsg_DocumentHasImages, OnDocumentHasImagesRequest)
 
     // Have the super handle all other messages.
     IPC_MESSAGE_UNHANDLED(handled = RenderWidget::OnMessageReceived(message))
@@ -4459,6 +4460,16 @@ void RenderViewImpl::OnPostMessageEvent(
   frame->dispatchMessageEventWithOriginCheck(target_origin, msg_event);
 }
 
+void RenderViewImpl::OnDocumentHasImagesRequest(int id) {
+  bool hasImages = false;
+  if (webview()) {
+    WebVector<WebElement> images;
+    webview()->mainFrame()->document().images(images);
+    hasImages = !images.isEmpty();
+  }
+  Send(new ViewHostMsg_DocumentHasImagesResponse(routing_id_, id, hasImages));
+}
+
 void RenderViewImpl::OnCSSInsertRequest(const string16& frame_xpath,
                                         const std::string& css) {
   WebFrame* frame = GetChildFrame(frame_xpath);