Remove RequestAnimationFrame from mojo, add delayed tasks to RunLoop

mojo/gles2/gles2_context.cc

Index: mojo/gles2/gles2_context.cc
diff --git a/mojo/gles2/gles2_context.cc b/mojo/gles2/gles2_context.cc
index 701b0fed13d50d06bf72aab87664511be8fac4a4..c454aed439b3dbf23604cde3824c8ce475e55f78 100644
--- a/mojo/gles2/gles2_context.cc
+++ b/mojo/gles2/gles2_context.cc
@@ -23,11 +23,9 @@ const size_t kDefaultMaxTransferBufferSize = 16 * 1024 * 1024;
 GLES2Context::GLES2Context(const MojoAsyncWaiter* async_waiter,
                            ScopedMessagePipeHandle command_buffer_handle,
                            MojoGLES2ContextLost lost_callback,
-                           MojoGLES2DrawAnimationFrame animation_callback,
                            void* closure)
     : command_buffer_(this, async_waiter, command_buffer_handle.Pass()),
       lost_callback_(lost_callback),
-      animation_callback_(animation_callback),
       closure_(closure) {}
 
 GLES2Context::~GLES2Context() {}
@@ -57,17 +55,7 @@ bool GLES2Context::Initialize() {
                                      gpu::gles2::GLES2Implementation::kNoLimit);
 }
 
-void GLES2Context::RequestAnimationFrames() {
-  command_buffer_.RequestAnimationFrames();
-}
-
-void GLES2Context::CancelAnimationFrames() {
-  command_buffer_.CancelAnimationFrames();
-}
-
 void GLES2Context::ContextLost() { lost_callback_(closure_); }
 
-void GLES2Context::DrawAnimationFrame() { animation_callback_(closure_); }
-
 }  // namespace gles2
 }  // namespace mojo