Implement device enumeration for PPB_VideoCapture_Dev.

- Implement PPB_VideoCapture_Dev v0.2.
- Use a ref-counted PlatformVideoCapture to manage lifespan of media::VideoCapture::EventHandler, instead of manipulating the ref count of PPB_VideoCapture_Impl.
- Extend examples/video_capture.

BUG=None
TEST=examples/video_capture

Review URL: https://chromiumcodereview.appspot.com/9234064

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@122176 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 28 insertions, 0 deletions

diff --git a/ppapi/shared_impl/ppb_device_ref_shared.cc b/ppapi/shared_impl/ppb_device_ref_shared.cc
index 43f758f..15a3a7b 100644
--- a/ppapi/shared_impl/ppb_device_ref_shared.cc
+++ b/ppapi/shared_impl/ppb_device_ref_shared.cc
@@ -4,7 +4,11 @@
 
 #include "ppapi/shared_impl/ppb_device_ref_shared.h"
 
+#include "base/memory/scoped_ptr.h"
 #include "ppapi/shared_impl/host_resource.h"
+#include "ppapi/shared_impl/ppapi_globals.h"
+#include "ppapi/shared_impl/ppb_resource_array_shared.h"
+#include "ppapi/shared_impl/resource_tracker.h"
 #include "ppapi/shared_impl/var.h"
 
 using ppapi::thunk::PPB_DeviceRef_API;
@@ -38,4 +42,28 @@ PP_Var PPB_DeviceRef_Shared::GetName() {
   return StringVar::StringToPPVar(data_.name);
 }
 
+// static
+PP_Resource PPB_DeviceRef_Shared::CreateResourceArray(
+    ResourceObjectType type,
+    PP_Instance instance,
+    const std::vector<DeviceRefData>& devices) {
+  scoped_array<PP_Resource> elements;
+  size_t size = devices.size();
+  if (size > 0) {
+    elements.reset(new PP_Resource[size]);
+    for (size_t index = 0; index < size; ++index) {
+      PPB_DeviceRef_Shared* device_object =
+          new PPB_DeviceRef_Shared(type, instance, devices[index]);
+      elements[index] = device_object->GetReference();
+    }
+  }
+  PPB_ResourceArray_Shared* array_object =
+      new PPB_ResourceArray_Shared(type, instance, elements.get(), size);
+
+  for (size_t index = 0; index < size; ++index)
+    PpapiGlobals::Get()->GetResourceTracker()->ReleaseResource(elements[index]);
+
+  return array_object->GetReference();
+}
+
 }  // namespace ppapi