Added context lost callback.

Methods added are:
CommandBufferProxy::SetChannelErrorCallback
ggl::SetContextLostCallback
WebGraphicsContext3DCommandBufferImpl::setContextLostCallback
WebGraphicsContext3DInProcessImpl::setContextLostCallback (empty)

This can land only after https://bugs.webkit.org/show_bug.cgi?id=53153, because it needs WebGraphicsContext3D::WebGraphicsContextLostCallback class.
After this lands, webkit change adding lost context methods to
GraphicsContext3D needs to land before the bug is closed.

BUG=67837
TEST=webkit change pending

Review URL: http://codereview.chromium.org/6317015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@73496 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 22 insertions, 0 deletions

diff --git a/chrome/renderer/webgraphicscontext3d_command_buffer_impl.cc b/chrome/renderer/webgraphicscontext3d_command_buffer_impl.cc
index c5ad191..52f8440 100644
--- a/chrome/renderer/webgraphicscontext3d_command_buffer_impl.cc
+++ b/chrome/renderer/webgraphicscontext3d_command_buffer_impl.cc
@@ -27,6 +27,10 @@
 WebGraphicsContext3DCommandBufferImpl::WebGraphicsContext3DCommandBufferImpl()
     : context_(NULL),
       web_view_(NULL),
+#if defined(OS_MACOSX)
+      plugin_handle_(NULL),
+#endif  // defined(OS_MACOSX)
+      context_lost_callback_(0),
       cached_width_(0),
       cached_height_(0),
       bound_fbo_(0) {
@@ -126,6 +130,12 @@ bool WebGraphicsContext3DCommandBufferImpl::initialize(
   }
   if (!context_)
     return false;
+
+  ggl::SetContextLostCallback(
+      context_,
+      NewCallback(this,
+                  &WebGraphicsContext3DCommandBufferImpl::OnContextLost));
+
   // TODO(gman): Remove this.
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (command_line.HasSwitch(switches::kDisableGLSLTranslator)) {
@@ -998,4 +1008,16 @@ void WebGraphicsContext3DCommandBufferImpl::OnSwapBuffers() {
     renderview->DidFlushPaint();
 }
 
+void WebGraphicsContext3DCommandBufferImpl::setContextLostCallback(
+    WebGraphicsContext3D::WebGraphicsContextLostCallback* cb)
+{
+  context_lost_callback_ = cb;
+}
+
+void WebGraphicsContext3DCommandBufferImpl::OnContextLost() {
+  if (context_lost_callback_) {
+    context_lost_callback_->onContextLost();
+  }
+}
+
 #endif  // defined(ENABLE_GPU)