[Android WebView] Implement the capture picture API.

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index d3bdd8067714480170ce788a3518f9027fd6d7f7..ff61a0a28bb3c7e522a566cf704828498f565898 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -1002,7 +1002,7 @@ void RenderProcessHostImpl::ClearTransportDIBCache() {
 
 bool RenderProcessHostImpl::Send(IPC::Message* msg) {
   if (!channel_.get()) {
-    if (!is_initialized_) {
+    if (!is_initialized_ && !msg->is_sync()) {
       queued_messages_.push(msg);
       return true;
     } else {
@@ -1012,6 +1012,10 @@ bool RenderProcessHostImpl::Send(IPC::Message* msg) {
   }
 
   if (child_process_launcher_.get() && child_process_launcher_->IsStarting()) {
+    if (msg->is_sync()) {
+      delete msg;
+      return false;
+    }
     queued_messages_.push(msg);
     return true;
   }