Update StreamTextureProxy to accept a base::Closure

content/renderer/media/android/stream_texture_factory.cc

Index: content/renderer/media/android/stream_texture_factory.cc
diff --git a/content/renderer/media/android/stream_texture_factory.cc b/content/renderer/media/android/stream_texture_factory.cc
index 2408fa1910bf94b8334850a9744e9a13b13b7994..f9c02492d371d2738ce39a32c3128a3dce294bbb 100644
--- a/content/renderer/media/android/stream_texture_factory.cc
+++ b/content/renderer/media/android/stream_texture_factory.cc
@@ -15,8 +15,7 @@
 
 namespace content {
 
-StreamTextureProxy::StreamTextureProxy(StreamTextureHost* host)
-    : host_(host), client_(NULL) {}
+StreamTextureProxy::StreamTextureProxy(StreamTextureHost* host) : host_(host) {}
 
 StreamTextureProxy::~StreamTextureProxy() {}
 
@@ -25,7 +24,7 @@ void StreamTextureProxy::Release() {
     // Cannot call into |client_| anymore (from any thread) after returning

[watk, 2016/07/29 19:03:16]

|client_| is dead

[tguilbert, 2016/08/01 22:05:57]

Done.

     // from here.
     base::AutoLock lock(lock_);
-    client_ = NULL;
+    received_frame_cb_.Reset();
   }
   // Release is analogous to the destructor, so there should be no more external
   // calls to this object in Release. Therefore there is no need to acquire the
@@ -38,7 +37,7 @@ void StreamTextureProxy::Release() {
 
 void StreamTextureProxy::BindToLoop(
     int32_t stream_id,
-    cc::VideoFrameProvider::Client* client,
+    const base::Closure& received_frame_cb,
     scoped_refptr<base::SingleThreadTaskRunner> loop) {
   DCHECK(loop.get());
 
@@ -46,7 +45,7 @@ void StreamTextureProxy::BindToLoop(
     base::AutoLock lock(lock_);
     DCHECK(!loop_.get() || (loop.get() == loop_.get()));
     loop_ = loop;
-    client_ = client;
+    received_frame_cb_ = received_frame_cb;
   }
 
   if (loop->BelongsToCurrentThread()) {
@@ -67,8 +66,8 @@ void StreamTextureProxy::BindOnThread(int32_t stream_id) {
 
 void StreamTextureProxy::OnFrameAvailable() {
   base::AutoLock lock(lock_);
-  if (client_)
-    client_->DidReceiveFrame();
+  if (!received_frame_cb_.is_null())
+    received_frame_cb_.Run();
 }
 
 // static