[cros] Initial WebRTC-enabled implementation of user image picker on OOBE.

chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h

Index: chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
index 5392c77fffc94eeeef0aea720d7905a15ea7cedb..71a30a092f7bfcb93f6c650f5281128fb216d0f3 100644
--- a/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/user_image_screen_handler.h
@@ -9,6 +9,7 @@
 #include "base/time.h"
 #include "chrome/browser/chromeos/login/user_image_screen_actor.h"
 #include "chrome/browser/chromeos/options/take_photo_dialog.h"
+#include "chrome/browser/image_decoder.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ -25,7 +26,8 @@ namespace chromeos {
 // with JS page part allowing user to select avatar.
 class UserImageScreenHandler : public UserImageScreenActor,
                                public BaseScreenHandler,
-                               public TakePhotoDialog::Delegate {
+                               public TakePhotoDialog::Delegate,
+                               public ImageDecoder::Delegate {
  public:
   UserImageScreenHandler();
   virtual ~UserImageScreenHandler();
@@ -63,6 +65,9 @@ class UserImageScreenHandler : public UserImageScreenActor,
   // Opens the camera capture dialog.
   void HandleTakePhoto(const base::ListValue* args);
 
+  // Handles photo taken with WebRTC UI.
+  void HandlePhotoTaken(const base::ListValue* args);
+
   // Handles clicking on default user image.
   void HandleSelectImage(const base::ListValue* args);
 
@@ -75,6 +80,12 @@ class UserImageScreenHandler : public UserImageScreenActor,
   // Called when the camera presence check has been completed.
   void OnCameraPresenceCheckDone();
 
+  // Overriden from ImageDecoder::Delegate:
+  virtual void OnImageDecoded(const ImageDecoder* decoder,
+                              const SkBitmap& decoded_image) OVERRIDE;
+  virtual void OnDecodeImageFailed(const ImageDecoder* decoder) OVERRIDE;
+
+
   UserImageScreenActor::Delegate* screen_;
 
   // Keeps whether screen should be shown right after initialization.
@@ -86,6 +97,15 @@ class UserImageScreenHandler : public UserImageScreenActor,
   // Last user photo, if taken.
   gfx::ImageSkia user_photo_;
 
+  // Last ImageDecoder instance used to decode an image blob received by
+  // HandlePhotoTaken.
+  scoped_refptr<ImageDecoder> image_decoder_;
+
+  // If |true|, decoded photo should be immediately accepeted (i.e., both
+  // HandleTakePhoto and HandleImageAccepted have already been called but we're
+  // still waiting for  photo image decoding to finish.
+  bool accept_photo_after_decoding_;
+
   // Data URL for |user_photo_|.
   std::string user_photo_data_url_;