[blink] Support (semi-)transparent background colors in WebView/Frame.

third_party/WebKit/Source/web/tests/WebViewTest.cpp

Index: third_party/WebKit/Source/web/tests/WebViewTest.cpp
diff --git a/third_party/WebKit/Source/web/tests/WebViewTest.cpp b/third_party/WebKit/Source/web/tests/WebViewTest.cpp
index 72607ea90554fa526b984bf96f5447cc1da0990b..1ed0c364bd0b958f917149c69ca5ceae37f9fbae 100644
--- a/third_party/WebKit/Source/web/tests/WebViewTest.cpp
+++ b/third_party/WebKit/Source/web/tests/WebViewTest.cpp
@@ -435,12 +435,12 @@ TEST_P(WebViewTest, SetBaseBackgroundColor) {
   frame->document()->shutdown();
 
   // Creating a new frame view with the background color having 0 alpha.
-  frame->createView(IntSize(1024, 768), Color::transparent, true);
+  frame->createView(IntSize(1024, 768), Color::transparent);
   EXPECT_EQ(kTransparent, frame->view()->baseBackgroundColor());
   frame->view()->dispose();
 
   const Color transparentRed(100, 0, 0, 0);
-  frame->createView(IntSize(1024, 768), transparentRed, true);
+  frame->createView(IntSize(1024, 768), transparentRed);
   EXPECT_EQ(transparentRed, frame->view()->baseBackgroundColor());
   frame->view()->dispose();
 }