Remove dependency of power_save_blocker_android on various content bits

content/browser/power_save_blocker_impl.h

Index: content/browser/power_save_blocker_impl.h
diff --git a/content/browser/power_save_blocker_impl.h b/content/browser/power_save_blocker_impl.h
index 93d90ebe756fc275d6174c3634c17e8789b3c6b4..fb8a01c59f4fd6b601b9ef26c00f36c7e6640538 100644
--- a/content/browser/power_save_blocker_impl.h
+++ b/content/browser/power_save_blocker_impl.h
@@ -14,6 +14,10 @@
 #include "build/build_config.h"
 #include "content/public/browser/power_save_blocker.h"
 
+#if defined(OS_ANDROID)
+#include "ui/android/view_android.h"
+#endif  // OS_ANDROID
+
 namespace content {
 
 class WebContents;
@@ -29,10 +33,10 @@ class PowerSaveBlockerImpl : public PowerSaveBlocker {
   ~PowerSaveBlockerImpl() override;
 
 #if defined(OS_ANDROID)
-  // In Android platform, the kPowerSaveBlockPreventDisplaySleep type of
-  // PowerSaveBlocker should associated with a WebContents, so the blocker
-  // could be removed by platform if the WebContents is hidden.
-  void InitDisplaySleepBlocker(WebContents* web_contents);
+  // On Android, the kPowerSaveBlockPreventDisplaySleep type of
+  // PowerSaveBlocker should associated with a View, so the blocker can be
+  // removed by the platform.
+  void InitDisplaySleepBlocker(ui::ViewAndroid* web_contents);
 #endif
 
  private: