Findbugs: Fix public static fields in AwResource.java.

build/android/findbugs_filter/findbugs_known_bugs.txt

Index: build/android/findbugs_filter/findbugs_known_bugs.txt
diff --git a/build/android/findbugs_filter/findbugs_known_bugs.txt b/build/android/findbugs_filter/findbugs_known_bugs.txt
index 739790f5032a924aeb42461f2c4f70dd0832547f..83cc380279e40e1dc9235f4fb1da9d8524949560 100644
--- a/build/android/findbugs_filter/findbugs_known_bugs.txt
+++ b/build/android/findbugs_filter/findbugs_known_bugs.txt
@@ -27,9 +27,6 @@ M V EI2: org.chromium.chrome.browser.ChromeBrowserProvider$BookmarkNode.setThumb
 M V EI2: org.chromium.content.browser.LoadUrlParams.setPostData(byte[]) may expose internal representation by storing an externally mutable object into LoadUrlParams.mPostData  At LoadUrlParams.java
 M V EI: org.chromium.chrome.browser.ChromeBrowserProvider$BookmarkNode.favicon() may expose internal representation by returning ChromeBrowserProvider$BookmarkNode.mFavicon  At ChromeBrowserProvider.java
 M V EI: org.chromium.chrome.browser.ChromeBrowserProvider$BookmarkNode.thumbnail() may expose internal representation by returning ChromeBrowserProvider$BookmarkNode.mThumbnail  At ChromeBrowserProvider.java
-M V MS: org.chromium.android_webview.AwResource.RAW_LOAD_ERROR should be package protected  In AwResource.java
-M V MS: org.chromium.android_webview.AwResource.RAW_NO_DOMAIN should be package protected  In AwResource.java
-M V MS: org.chromium.android_webview.AwResource.STRING_DEFAULT_TEXT_ENCODING should be package protected  In AwResource.java
 M V MS: org.chromium.content.browser.LoadUrlParams.LOAD_TYPE_BROWSER_INITIATED_HTTP_POST should be package protected  In LoadUrlParams.java
 M V MS: org.chromium.content.browser.LoadUrlParams.LOAD_TYPE_DATA isn't final and can't be protected from malicious code   In LoadUrlParams.java
 M V MS: org.chromium.content.browser.LoadUrlParams.LOAD_TYPE_DEFAULT should be package protected  In LoadUrlParams.java