[WebView Support Library] roll boundary interfaces

This rolls the boundary interfaces for the androidx.webkit module to https://android.googlesource.com/platform/external/webview_support_interfaces/+/f7312e34355ac52c92ee7e158ced57789c8e1701

Test: N/A

default.xml

@@ -11,7 +11,7 @@
   <!-- Config: shallow + same revision -->
   <project path="external/noto-fonts" name="platform/external/noto-fonts" groups="pdk" clone-depth="1" revision="master" />
   <project path="external/flatbuffers" name="platform/external/flatbuffers" groups="pdk" clone-depth="1" revision="master" />
-  <project path="external/webview_support_interfaces" name="platform/external/webview_support_interfaces" groups="pdk" clone-depth="1" revision="023152ac4ec8293b0496ab11ab0280c3ef5e1f02" />
+  <project path="external/webview_support_interfaces" name="platform/external/webview_support_interfaces" groups="pdk" clone-depth="1" revision="f7312e34355ac52c92ee7e158ced57789c8e1701" />
   <project path="external/doclava" name="platform/external/doclava" groups="pdk" clone-depth="1" revision="master" />
   <project path="external/jdiff" name="platform/external/jdiff" groups="pdk" clone-depth="1" revision="master" />
   <project path="prebuilts/androidx/external" name="platform/prebuilts/androidx/external" groups="pdk" clone-depth="1" />