Add create note palette action.

ash/common/system/chromeos/palette/palette_tool_manager.cc

 // Copyright 2016 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 "ash/common/system/chromeos/palette/palette_tool_manager.h"
 
 #include <algorithm>
 
 #include "ash/common/system/chromeos/palette/palette_tool.h"
 #include "base/bind.h"
@@ skipping 60 matching lines @@
 
 gfx::VectorIconId PaletteToolManager::GetActiveTrayIcon(PaletteToolId tool_id) {
   PaletteTool* tool = FindToolById(tool_id);
   if (!tool)
     return gfx::VectorIconId::PALETTE_TRAY_ICON_DEFAULT;
 
   return tool->GetActiveTrayIcon();
 }
 
 std::vector<PaletteToolView> PaletteToolManager::CreateViews() {
-  std::vector<PaletteToolView> views(tools_.size());
+  std::vector<PaletteToolView> views;
+  views.reserve(tools_.size());

[James Cook, 2016/08/12 23:58:55]

nice attention to detail

[jdufault, 2016/08/16 21:38:18]

:)

 
   for (size_t i = 0; i < tools_.size(); ++i) {
-    PaletteToolView* view = &views[i];
-    view->group = tools_[i]->GetGroup();
-    view->tool_id = tools_[i]->GetToolId();
-    view->view = tools_[i]->CreateView();
+    views::View* tool_view = tools_[i]->CreateView();
+    if (!tool_view)
+      continue;
+
+    PaletteToolView view;
+    view.group = tools_[i]->GetGroup();
+    view.tool_id = tools_[i]->GetToolId();
+    view.view = tool_view;
+    views.push_back(view);
   }
 
   return views;
 }
 
 void PaletteToolManager::NotifyViewsDestroyed() {
   for (std::unique_ptr<PaletteTool>& tool : tools_)
     tool->OnViewDestroyed();
 }
 
@@ skipping 16 matching lines @@
 PaletteTool* PaletteToolManager::FindToolById(PaletteToolId tool_id) {
   for (std::unique_ptr<PaletteTool>& tool : tools_) {
     if (tool->GetToolId() == tool_id)
       return tool.get();
   }
 
   return nullptr;
 }
 
 }  // namespace ash