Add ExynosVideoEncodeAccelerator

content/common/gpu/gl_surface_encoder.cc

Index: content/common/gpu/gl_surface_encoder.cc
diff --git a/content/common/gpu/gl_surface_encoder.cc b/content/common/gpu/gl_surface_encoder.cc
index efa717f743a5426c4f4455eb6763a1abc329850e..ea0cad1e9f26e1a05c75afd723edc9dacd82a5b8 100644
--- a/content/common/gpu/gl_surface_encoder.cc
+++ b/content/common/gpu/gl_surface_encoder.cc
@@ -12,14 +12,30 @@
 #include "media/base/video_frame.h"
 #include "ui/gl/gl_surface.h"
 
+#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
+#include "content/common/gpu/media/exynos_video_encode_accelerator.h"
+#include "ui/gl/gl_surface_egl.h"
+#endif
+
 namespace content {
 
-namespace {
+static bool MakeEncoderContextCurrent(
+    const base::WeakPtr<GpuCommandBufferStub> stub) {
+  if (!stub) {
+    DLOG(ERROR) << "Stub is gone; won't MakeCurrent().";
+    return false;
+  }
 
-void DoNothingWithSurface(gfx::GLSurface* surface) {
+  if (!stub->decoder()->MakeCurrent()) {
+    DLOG(ERROR) << "Failed to MakeCurrent()";
+    return false;
+  }
+
+  return true;
 }
 
-}  // anonymous namespace
+static void DoNothingWithSurface(gfx::GLSurface* surface) {
+}
 
 GLSurfaceEncoder::GLSurfaceEncoder(int32 host_route_id,
                                    GpuCommandBufferStub* stub)
@@ -117,7 +133,17 @@ scoped_ptr<media::VideoEncodeAccelerator> GLSurfaceEncoder::CreateEncoder(
     media::VideoEncodeAccelerator::Client* client) {
   scoped_ptr<media::VideoEncodeAccelerator> encoder;
 
-  // TODO(sheu): actually create an encoder.
+  base::Callback<bool(void)> make_current =
+      base::Bind(&MakeEncoderContextCurrent, stub->AsWeakPtr());
+
+#if defined(OS_CHROMEOS) && defined(ARCH_CPU_ARMEL)
+  encoder.reset(new ExynosVideoEncodeAccelerator(
+      gfx::GLSurfaceEGL::GetHardwareDisplay(),
+      client,
+      make_current,
+      true));
+#endif
+
   return encoder.Pass();
 }