Add unit tests for DesktopMediaPickerViews.

chrome/browser/media/fake_desktop_media_list.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/media/fake_desktop_media_list.h"
 
 #include "chrome/browser/media/desktop_media_list_observer.h"
 #include "ui/gfx/skia_util.h"
 
 FakeDesktopMediaList::FakeDesktopMediaList() : observer_(NULL) {}
 FakeDesktopMediaList::~FakeDesktopMediaList() {}
 
 void FakeDesktopMediaList::AddSource(int id) {
   Source source;
   source.id = content::DesktopMediaID(content::DesktopMediaID::TYPE_WINDOW, id);
   source.name = base::Int64ToString16(id);
 
   sources_.push_back(source);
   observer_->OnSourceAdded(sources_.size() - 1);
 }
 
 void FakeDesktopMediaList::RemoveSource(int index) {
   sources_.erase(sources_.begin() + index);
-  observer_->OnSourceRemoved(sources_.size() - 1);
+  observer_->OnSourceRemoved(index);
 }
 
 void FakeDesktopMediaList::MoveSource(int old_index, int new_index) {
   Source source = sources_[old_index];
   sources_.erase(sources_.begin() + old_index);
   sources_.insert(sources_.begin() + new_index, source);
   observer_->OnSourceMoved(old_index, new_index);
 }
 
 void FakeDesktopMediaList::SetSourceThumbnail(int index) {
@@ skipping 21 matching lines @@
   bitmap.eraseARGB(255, 0, 255, 0);
   thumbnail_ = gfx::ImageSkia::CreateFrom1xBitmap(bitmap);
 }
 
 int FakeDesktopMediaList::GetSourceCount() const { return sources_.size(); }
 
 const DesktopMediaList::Source& FakeDesktopMediaList::GetSource(
     int index) const {
   return sources_[index];
 }