[Android WebView] OnMemoryPressure to drop tile memory

android_webview/browser/scoped_app_gl_state_restore.h

Index: android_webview/browser/scoped_app_gl_state_restore.h
diff --git a/android_webview/browser/scoped_app_gl_state_restore.h b/android_webview/browser/scoped_app_gl_state_restore.h
index 93b5ad51be63ef2827d8cdf25e7e6c03cca5b7fa..850454a4c7ce7d3533b1651ce1bb948eecfdc730 100644
--- a/android_webview/browser/scoped_app_gl_state_restore.h
+++ b/android_webview/browser/scoped_app_gl_state_restore.h
@@ -18,7 +18,8 @@ class ScopedAppGLStateRestore {
  public:
   enum CallMode {
     MODE_DRAW,
-    MODE_DETACH_FROM_WINDOW
+    MODE_DETACH_FROM_WINDOW,
+    MODE_ON_TRIM

[joth, 2013/10/02 10:47:01]

nit: include the trailing comma on last item

as detach and trim are the same, should they be combined into a single "resource
management" enum? (I think it maybe better to have the enums reflect classes of
use rather than the exact function names it is used from)

[boliu, 2013/10/02 14:09:55]

both done

   };
 
   ScopedAppGLStateRestore(CallMode mode);