Add VideoPacket struct for video packets. Refactor Decode interface to use it.

remoting/host/capturer.cc

Index: remoting/host/capturer.cc
diff --git a/remoting/host/capturer.cc b/remoting/host/capturer.cc
index 9e63041fa4a9cc4def1a11ac7a22e6f02563343a..b66e577260909e1a72fc60740145ec6ec4bcc03c 100644
--- a/remoting/host/capturer.cc
+++ b/remoting/host/capturer.cc
@@ -13,7 +13,7 @@ namespace remoting {
 Capturer::Capturer()
     : width_(0),
       height_(0),
-      pixel_format_(PIXEL_FORMAT_INVALID),
+      pixel_format_(media::VideoFrame::INVALID),
       bytes_per_row_(0),
       current_buffer_(0) {
 }
@@ -21,6 +21,21 @@ Capturer::Capturer()
 Capturer::~Capturer() {
 }
 
+// Return the width of the screen.
+int Capturer::width() const {
+  return width_;
+}
+
+// Return the height of the screen.
+int Capturer::height() const {
+  return height_;
+}
+
+// Return the pixel format of the screen.
+media::VideoFrame::Format Capturer::pixel_format() const {
+  return pixel_format_;
+}
+
 void Capturer::ClearInvalidRects() {
   AutoLock auto_inval_rects_lock(inval_rects_lock_);
   inval_rects_.clear();