Implement input type=color UI (common part)

content/browser/renderer_host/render_view_host.h

Index: content/browser/renderer_host/render_view_host.h
diff --git a/content/browser/renderer_host/render_view_host.h b/content/browser/renderer_host/render_view_host.h
index 37720ffb5d1d7058ce73d65775397ce660951445..d5138633f82caacca65153d890fe0901834e62af 100644
--- a/content/browser/renderer_host/render_view_host.h
+++ b/content/browser/renderer_host/render_view_host.h
@@ -20,6 +20,9 @@
 #include "content/public/browser/notification_observer.h"
 #include "content/public/common/window_container_type.h"
 #include "net/base/load_states.h"
+#if defined(ENABLE_INPUT_COLOR)
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebColor.h"
+#endif
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebConsoleMessage.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
@@ -334,6 +337,13 @@ class CONTENT_EXPORT RenderViewHost : public RenderWidgetHost {
       const std::vector<FilePath>& local_paths,
       const FilePath& local_directory_name);
 
+#if defined(ENABLE_INPUT_COLOR)
+  // Notifies the RenderView that the user selected a color in the color
+  // chooser.
+  void DidChooseColorInColorChooser(WebKit::WebColor);
+  void DidCleanupColorChooser();
+#endif
+
   // Notifies the Listener that one or more files have been chosen by the user
   // from a file chooser dialog for the form. |permissions| are flags from the
   // base::PlatformFileFlags enum which specify which file permissions should