[Android WebView] Implement the capture picture API.

android_webview/renderer/aw_render_view_ext.cc

Index: android_webview/renderer/aw_render_view_ext.cc
diff --git a/android_webview/renderer/aw_render_view_ext.cc b/android_webview/renderer/aw_render_view_ext.cc
index c236112cd8e0dedb523e61a9acac93e6910f0187..5798011bfa00d496ef13b80598df2bb1e228503a 100644
--- a/android_webview/renderer/aw_render_view_ext.cc
+++ b/android_webview/renderer/aw_render_view_ext.cc
@@ -49,6 +49,8 @@ AwRenderViewExt::AwRenderViewExt(content::RenderView* render_view)
     : content::RenderViewObserver(render_view) {
   render_view->GetWebView()->setPermissionClient(this);
   // TODO(leandrogracia): enable once the feature is available in RenderView.
+  // TODO(leandrogracia): remove when SW rendering uses Ubercompositor.

[joth, 2013/01/12 02:36:28]

Haha It was bad enough as a TODO to enable the code, but really, a TODO to
remove some not yet enabled code? :-D ;-)
But yeah I think this is best we can do for now..

[Leandro Graciá Gil, 2013/01/12 17:59:14]

First TODO get SW rendering work using CapturePicture once the API is ready in
RenderView. Second TODO to remove this in favor of the real Ubercompositor SW
rendering when we can. Yes, just the TODOs look a bit silly...

+  // Until then we need the callback enabled for SW mode invalidation.
   //render_view->SetCapturePictureCallback(
   //    base::Bind(&AwRenderViewExt::OnPictureUpdate, AsWeakPtr()));
 }
@@ -72,6 +74,8 @@ bool AwRenderViewExt::OnMessageReceived(const IPC::Message& message) {
     IPC_MESSAGE_HANDLER(AwViewMsg_DoHitTest, OnDoHitTest)
     IPC_MESSAGE_HANDLER(AwViewMsg_EnableCapturePictureCallback,
                         OnEnableCapturePictureCallback)
+    IPC_MESSAGE_HANDLER_DELAY_REPLY(AwViewMsg_CapturePictureSync,
+                        OnCapturePictureSync)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -205,4 +209,11 @@ void AwRenderViewExt::OnPictureUpdate(skia::RefPtr<SkPicture> picture) {
   Send(new AwViewHostMsg_PictureUpdated(routing_id()));
 }
 
+void AwRenderViewExt::OnCapturePictureSync(IPC::Message* reply_msg) {
+  // TODO(leandrogracia): enable once the feature is available in RenderView.
+  //RendererPictureMap::GetInstance()->SetRendererPicture(
+  //    routing_id(), render_view()->CapturePicture());
+  Send(reply_msg);
+}
+
 }  // namespace android_webview