weblayer: Hook up wide color gamut

Enable wide color gamut in same condition as chrome, except use
kUseWindow instead of kUseDisplay.

Change-Id: I199bb3545143ad169b13f47ed5986c6d0865728f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2143861
Commit-Queue: Bo <boliu@chromium.org>
Reviewed-by: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#758344}

weblayer/browser/content_browser_client_impl.cc

@@ -594,4 +594,13 @@ void ContentBrowserClientImpl::AppendExtraCommandLineSwitches(
   }
 }
 
+#if defined(OS_ANDROID)
+content::ContentBrowserClient::WideColorGamutHeuristic
+ContentBrowserClientImpl::GetWideColorGamutHeuristic() {
+  // Always match window since a mismatch can cause inefficiency in surface
+  // flinger.
+  return WideColorGamutHeuristic::kUseWindow;
+}
+#endif  // OS_ANDROID
+
 }  // namespace weblayer

weblayer/browser/content_browser_client_impl.h

@@ -97,6 +97,9 @@ class ContentBrowserClientImpl : public content::ContentBrowserClient {
 #endif  // defined(OS_LINUX) || defined(OS_ANDROID)
   void AppendExtraCommandLineSwitches(base::CommandLine* command_line,
                                       int child_process_id) override;
+#if defined(OS_ANDROID)
+  WideColorGamutHeuristic GetWideColorGamutHeuristic() override;
+#endif  // OS_ANDROID
 
   void CreateFeatureListAndFieldTrials();