[Android WebView] Turn on accelerated canvas based on View.isHardwareAccelerated

android_webview/java/src/org/chromium/android_webview/AwContents.java

Index: android_webview/java/src/org/chromium/android_webview/AwContents.java
diff --git a/android_webview/java/src/org/chromium/android_webview/AwContents.java b/android_webview/java/src/org/chromium/android_webview/AwContents.java
index 7ede406b397f4e04be64a958e1d95af86408e77d..9371b09422912ad606f5ef145d750a5b1d85143a 100644
--- a/android_webview/java/src/org/chromium/android_webview/AwContents.java
+++ b/android_webview/java/src/org/chromium/android_webview/AwContents.java
@@ -1550,6 +1550,8 @@ public class AwContents {
         mContentViewCore.onAttachedToWindow();
         nativeOnAttachedToWindow(mNativeAwContents, mContainerView.getWidth(),
                 mContainerView.getHeight());
+        mSettings.setEnableSupportedHardwareAcceleratedFeatures(
+            mContainerView.isHardwareAccelerated());
 
         if (mComponentCallbacks != null) return;
         mComponentCallbacks = new AwComponentCallbacks();
@@ -1568,6 +1570,8 @@ public class AwContents {
 
         mContentViewCore.onDetachedFromWindow();
 
+        mSettings.setEnableSupportedHardwareAcceleratedFeatures(false);
+
         if (mComponentCallbacks != null) {
             mContainerView.getContext().unregisterComponentCallbacks(mComponentCallbacks);
             mComponentCallbacks = null;