[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.

[palmer, 2013/01/15 01:16:19]

Again, it's my preference to tie TODOs to live bugs.

[Leandro Graciá Gil, 2013/01/15 18:49:23]

Adding crbug link. In these cases we want to leave clear pointers in the code of
the parts that will need to be changed once Ubercompositor is ready, and have as
few of them as possible.

+  // 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