Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel buffer on Windows.

tools/viewer/android/Window_android.h

 /*
 * Copyright 2016 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #ifndef Window_android_DEFINED
 #define Window_android_DEFINED
 
 #include "../Window.h"
 #include <android_native_app_glue.h>
 
 namespace sk_app {
 
 enum {
     /**
      * Leave plenty of space between this item and the ones defined in the glue layer
      */
-        APP_CMD_INVAL_WINDOW = 64,
+    APP_CMD_INVAL_WINDOW = 64,
 };
 
 class Window_android : public Window {
 public:
-        Window_android() : Window() {}
+    Window_android() : Window() {}
     ~Window_android() override {}
 
     bool init(android_app* app_state);
     void initDisplay(ANativeWindow* window);
 
     void setTitle(const char*) override;
     void show() override {}
 
-    bool attach(BackEndType attachType, int msaaSampleCount) override;
+    bool attach(BackEndType attachType, int msaaSampleCount, bool deepColor) override;
     void inval() override;
 
     void paintIfNeeded();
 
     bool scaleContentToFit() const override { return true; }
     bool supportsContentRect() const override { return true; }
     SkRect getContentRect() override { return mContentRect; }
     void setContentRect(int l, int t, int r, int b) { mContentRect.set(l,t,r,b); }
 
 private:
     android_app* mApp = nullptr;
     SkRect mContentRect;
     int mSampleCount = 0;
 };
 
 }   // namespace sk_app
 
 #endif