[chromecast] Add force_720p_resolution in CastWebView::CreateParams

Bug: b/74442987
Test: build cast_shell
Change-Id: Id8b10f928176682ac940dffdaadbbe2853e41cca
Reviewed-on: https://chromium-review.googlesource.com/1096354Reviewed-by: Luke Halliwell <halliwell@chromium.org>
Commit-Queue: Yuanyao Zhong <yyzhong@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566645}

chromecast/browser/cast_web_view.cc

@@ -29,4 +29,6 @@ void CastWebView::RemoveObserver(CastWebView::Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
+CastWebView::CreateParams::CreateParams() {}
+
 }  // namespace chromecast

chromecast/browser/cast_web_view.h

@@ -94,6 +94,11 @@ class CastWebView {
     // functionality for the WebContents, like remote debugging and debugging
     // interfaces.
     bool enabled_for_dev = false;
+
+    // Enable/Force 720p resolution for this CastWebView instance.
+    bool force_720p_resolution = false;
+
+    CreateParams();
   };
 
   CastWebView();