Use BrowserWindow's backgroundColor as renderer view's background color

atom/common/color_util.cc

@@ -0,0 +1,34 @@
+// Copyright (c) 2016 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#include "atom/common/color_util.h"
+
+#include "base/strings/string_util.h"
+
+namespace atom {
+
+SkColor ParseHexColor(const std::string& name) {
+  auto color = name.substr(1);
+  unsigned length = color.size();
+  SkColor result = (length != 8 ? 0xFF000000 : 0x00000000);
+  unsigned value = 0;
+  if (length != 3 && length != 6 && length != 8)
+    return result;
+  for (unsigned i = 0; i < length; ++i) {
+    if (!base::IsHexDigit(color[i]))
+      return result;
+    value <<= 4;
+    value |= (color[i] < 'A' ? color[i] - '0' : (color[i] - 'A' + 10) & 0xF);
+  }
+  if (length == 6 || length == 8) {
+    result |= value;
+    return result;
+  }
+  result |= (value & 0xF00) << 12 | (value & 0xF00) << 8
+      | (value & 0xF0) << 8 | (value & 0xF0) << 4
+      | (value & 0xF) << 4 | (value & 0xF);
+  return result;
+}
+
+}  // namespace atom

atom/common/color_util.h

@@ -0,0 +1,19 @@
+// Copyright (c) 2016 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_COMMON_COLOR_UTIL_H_
+#define ATOM_COMMON_COLOR_UTIL_H_
+
+#include <string>
+
+#include "third_party/skia/include/core/SkColor.h"
+
+namespace atom {
+
+// Parse hex color like "#FFF" or "#EFEFEF"
+SkColor ParseHexColor(const std::string& name);
+
+}  // namespace atom
+
+#endif  // ATOM_COMMON_COLOR_UTIL_H_

atom/common/options_switches.cc

@@ -142,12 +142,13 @@ const char kCipherSuiteBlacklist[] = "cipher-suite-blacklist";
 const char kAppUserModelId[] = "app-user-model-id";
 
 // The command line switch versions of the options.
-const char kZoomFactor[]                 = "zoom-factor";
-const char kPreloadScript[]              = "preload";
-const char kPreloadURL[]                 = "preload-url";
-const char kNodeIntegration[]            = "node-integration";
-const char kGuestInstanceID[]            = "guest-instance-id";
-const char kOpenerID[]                   = "opener-id";
+const char kBackgroundColor[] = "background-color";
+const char kZoomFactor[]      = "zoom-factor";
+const char kPreloadScript[]   = "preload";
+const char kPreloadURL[]      = "preload-url";
+const char kNodeIntegration[] = "node-integration";
+const char kGuestInstanceID[] = "guest-instance-id";
+const char kOpenerID[]        = "opener-id";
 
 // Widevine options
 // Path to Widevine CDM binaries.

atom/common/options_switches.h

@@ -76,6 +76,7 @@ extern const char kSSLVersionFallbackMin[];
 extern const char kCipherSuiteBlacklist[];
 extern const char kAppUserModelId[];
 
+extern const char kBackgroundColor[];
 extern const char kZoomFactor[];
 extern const char kPreloadScript[];
 extern const char kPreloadURL[];