Add GpuSurfaceLookup::AcquireJavaSurface for AVDA on Android.

AndroidVideoDecodeAccelerator, which runs in the GPU process, needs a
way to get a java Surface from the browser process. GpuSurfaceLookup and
SurfaceTextureManagerImpl already provide a way to get an ANativeWindow
but not the corresponding java Surface. This new method returns the java
surface.

BUG=533630

Review URL: https://codereview.chromium.org/1567193002

Cr-Commit-Position: refs/heads/master@{#368478}

content/app/android/child_process_service.cc

@@ -123,6 +123,14 @@ class SurfaceTextureManagerImpl : public SurfaceTextureManager,
     return native_window;
   }
 
+  // Overridden from GpuSurfaceLookup:
+  gfx::ScopedJavaSurface AcquireJavaSurface(int surface_id) override {
+    JNIEnv* env = base::android::AttachCurrentThread();
+    return gfx::ScopedJavaSurface(
+        content::Java_ChildProcessService_getViewSurface(env, service_.obj(),
+                                                         surface_id));
+  }
+
  private:
   // The instance of org.chromium.content.app.ChildProcessService.
   base::android::ScopedJavaGlobalRef<jobject> service_;

content/common/gpu/gpu_surface_lookup.cc

@@ -23,4 +23,11 @@ void GpuSurfaceLookup::InitInstance(GpuSurfaceLookup* lookup) {
   g_instance = lookup;
 }
 
+#if defined(OS_ANDROID)
+gfx::ScopedJavaSurface GpuSurfaceLookup::AcquireJavaSurface(int surface_id) {
+  NOTIMPLEMENTED();
+  return gfx::ScopedJavaSurface();
+}
+#endif
+
 }  // namespace content

content/common/gpu/gpu_surface_lookup.h

@@ -9,6 +9,10 @@
 #include "content/common/content_export.h"
 #include "ui/gfx/native_widget_types.h"
 
+#if defined(OS_ANDROID)
+#include "ui/gl/android/scoped_java_surface.h"
+#endif
+
 namespace content {
 
 // This class provides an interface to look up window surface handles
@@ -23,6 +27,10 @@ class CONTENT_EXPORT GpuSurfaceLookup {
 
   virtual gfx::AcceleratedWidget AcquireNativeWidget(int surface_id) = 0;
 
+#if defined(OS_ANDROID)
+  virtual gfx::ScopedJavaSurface AcquireJavaSurface(int surface_id);
+#endif
+
  private:
   DISALLOW_COPY_AND_ASSIGN(GpuSurfaceLookup);
 };