Android: Fix wrong cs height upon rotation

The view height was not being set correctly when the device
was rotated as reported in the bug. The bar height should
have been taken into account like it was done at creation.
This CL fixes that. This matters only for full-sized width
contextual search panel only, where the cs panel is preserved
upon rotation.

Bug: 819506
Change-Id: I85b0795928a1faeb61b03b14af0ff035f4c1d001
Reviewed-on: https://chromium-review.googlesource.com/954242Reviewed-by: Donn Denman <donnd@chromium.org>
Commit-Queue: Jinsuk Kim <jinsukkim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541667}

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanel.java

@@ -793,6 +793,7 @@ public class OverlayPanel extends OverlayPanelAnimation implements ActivityState
      */
     protected void resizePanelContentViewCore(float width, float height) {
         if (!isShowing()) return;
+        if (isFullWidthSizePanel()) height = height - getBarHeight();
         getOverlayPanelContent().onSizeChanged((int) (width / mPxToDp), (int) (height / mPxToDp));
         getOverlayPanelContent().onPhysicalBackingSizeChanged(
                 (int) (width / mPxToDp), (int) (height / mPxToDp));

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java

@@ -364,8 +364,8 @@ public class OverlayPanelContent {
                 mNativeOverlayPanelContentPtr, mInterceptNavigationDelegate, panelWebContents);
 
         mContentDelegate.onContentViewCreated();
-        onPhysicalBackingSizeChanged(mContentViewWidth, mContentViewHeight);
         int viewHeight = mContentViewHeight - (mSubtractBarHeight ? mBarHeightPx : 0);
+        onPhysicalBackingSizeChanged(mContentViewWidth, viewHeight);
         panelWebContents.setSize(mContentViewWidth, viewHeight);
     }
 
@@ -507,7 +507,7 @@ public class OverlayPanelContent {
     }
 
     void onSizeChanged(int width, int height) {
-        if (mContentViewCore == null || getWebContents() == null) return;
+        if (getWebContents() == null) return;
         getWebContents().setSize(width, height);
     }