Update to Chromium revision 088f14a0 (#373530)

- Building on Windows now requires the Windows 10.0.10586 SDK.
- Remove CefParseCSSColor which was implemented using Blink code in the
  browser process. This is longer advisable now that the Oilpan GC is enabled.
- Avoid potential renderer process crashes by disabling script actions
  on the CefV8Context passed to CefRenderProcessHandler::OnContextReleased.

libcef/renderer/webkit_glue.h

@@ -10,8 +10,6 @@
 
 #include <string>
 
-#include "third_party/skia/include/core/SkColor.h"
-
 #include "include/internal/cef_types.h"
 
 namespace blink {
@@ -46,12 +44,6 @@ int64_t GetIdentifier(blink::WebFrame* frame);
 blink::WebFrame* FindFrameByUniqueName(const blink::WebString& unique_name,
                                        blink::WebFrame* relative_to_frame);
 
-// Initialize PartitionAlloc before calling Blink functions from the browser
-// process. Safe to call multiple times.
-void InitializePartitionAlloc();
-
-bool ParseCSSColor(const blink::WebString& string, bool strict, SkColor& color);
-
 }  // webkit_glue
 
 #endif  // CEF_LIBCEF_RENDERER_WEBKIT_GLUE_H_