FBTF: Fix more ctor/dtors found by clang plugin.

chrome/browser/tab_contents/tab_contents_view.cc

Index: chrome/browser/tab_contents/tab_contents_view.cc
diff --git a/chrome/browser/tab_contents/tab_contents_view.cc b/chrome/browser/tab_contents/tab_contents_view.cc
index c03bc35600ab085bab46d49c3c44c8fe3938157b..9acb0bdc228da5fbedb742ad34037028432b9315 100644
--- a/chrome/browser/tab_contents/tab_contents_view.cc
+++ b/chrome/browser/tab_contents/tab_contents_view.cc
@@ -16,6 +16,8 @@ TabContentsView::TabContentsView(TabContents* tab_contents)
     : tab_contents_(tab_contents) {
 }
 
+TabContentsView::~TabContentsView() {}
+
 void TabContentsView::RenderWidgetHostDestroyed(RenderWidgetHost* host) {
   if (host->view())
     host->view()->WillDestroyRenderWidget(host);
@@ -103,6 +105,20 @@ void TabContentsView::UpdatePreferredSize(const gfx::Size& pref_size) {
     tab_contents_->delegate()->UpdatePreferredSize(pref_size);
 }
 
+bool TabContentsView::IsDoingDrag() const {
+  return false;
+}
+
+bool TabContentsView::IsEventTracking() const {
+  return false;
+}
+
+bool TabContentsView::ShouldDrawDropShadow() {
+  return false;
+}
+
+TabContentsView::TabContentsView() {}
+
 void TabContentsView::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
   if (tab_contents_->delegate())
     tab_contents_->delegate()->HandleKeyboardEvent(event);